Best NAS You Can Buy Right Now for Under $249 at the end of 2025

As personal data storage requirements continue to rise in 2025, many users are moving away from cloud platforms and monthly subscription services in search of something more private and cost effective. A dedicated NAS, or network attached storage system, allows you to back up photo collections, host a home media library, or manage small business files while keeping full control of your data and avoiding ongoing fees. The good news is that the market now includes several capable options priced at or under 249 dollars. Improvements in low power processors, wider use of DDR5 memory, and leaner operating systems have made entry level systems far more powerful than they were even a year ago. They can comfortably handle tasks such as Plex playback, simple virtualization, and lightweight container apps. This article looks at five NAS units currently available within this price bracket, each offering a practical mix of performance, connectivity, and storage flexibility for anyone building a reliable setup on a limited budget.

Important Disclaimer and Notes Before You Buy!

Before looking at specific NAS models, it helps to understand the common limits of systems in this price tier. Most units under 249 dollars arrive without drives, and rely on NVMe or SATA bays that must be filled separately. Some include small onboard storage such as 32GB to 64GB eMMC that only covers the operating system. This means the total cost of a usable setup will usually be higher than the base price. These devices are aimed at home users and personal cloud tasks rather than heavier business workloads. Several models also lack a full NAS operating system and instead use lightweight platforms such as CasaOS or ZimaOS, or provide only a simple interface for local file access and containers. These options are improving, yet they may not offer advanced RAID tools, snapshot automation, or detailed permission control found on systems like Synology DSM or TrueNAS. Overall, these NAS units suit users with some technical confidence or anyone who wants a simple setup with limited depth.

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Beelink ME Mini NAS – 6 Bay SSD NAS

$209 – Intel N150 – 12GB – No SSD (64GB eMMC Only) – 2x 2.5GbE + WiFi 6 – No OS / User Install – BUY HERE

The Beelink ME Mini is a compact NAS designed for anyone who wants fast SSD storage in a very small enclosure. It measures 99mm on each side and includes six M.2 2280 NVMe slots that can deliver as much as 24TB when fully populated. The system uses an Intel N150 processor with 12GB of LPDDR5 memory, which provides a solid mix of performance and low power draw. Connectivity includes two 2.5GbE ports, WiFi 6, and Bluetooth 5.2, giving it flexibility for both wired and wireless use. Cooling is handled passively and the unit contains its own power supply, which keeps noise and cable clutter to a minimum and makes it a good fit for living rooms or compact office spaces.

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Terramaster F2-425 2- Bay Intel Value Turnkey NAS

$249 – Intel N5105 – 4GB – TOS 6 Software – 1x 2.5GbE – 2x SATA – BUY HERE

The Terramaster F2-424 is a two bay NAS that sits near the upper edge of the 249 dollar bracket and focuses on providing a more traditional turnkey experience. It uses an Intel Celeron class x86 quad core processor with 4GB of memory that can be upgraded, which allows it to handle general home NAS tasks and hardware assisted 4K decoding for applications such as Plex, Emby, and Jellyfin.

The system supports two SATA drives for a total capacity of up to 60TB and includes TRAID for flexible expansion and space management. Connectivity is limited to a single 2.5GbE port, which is sufficient for most home use but less flexible than some other systems in this list that offer two LAN ports. The unit runs TOS 6, which provides RAID options, snapshots, cloud sync, and a broad selection of built in apps for backup, media, and light productivity needs.

Setup can be completed through the TNAS Mobile app, which also supports automatic photo and video backups from mobile devices. Local AI driven sorting for photos is included, and cross platform access is available through the TNAS client or standard network mapping. TerraSync enables PC backups with version history, and security features include OTP authentication, firewall controls, DoS protections, snapshots, and HyperLock WORM for ransomware resistance. The chassis is quiet in operation and uses tool free push lock trays that allow quick installation or replacement of drives.

Terramaster also offers the F2-425 Plus at roughly 130 dollars more. That model increases CPU and memory resources and is aimed at users who want stronger performance and scalability. For those who want to remain within the 249 dollar limit, the F2-424 provides a straightforward Intel based platform with a familiar OS, upgradable memory, and native HDD support, as long as the single network port meets the user’s needs.

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GMKTec G9 NAS – 4 Bay M.2 NAS @ The lowest Price

$185.99 – Intel N150 – 12GB – No SSD (64GB eMMC Only) – 2x 2.5GbE + WiFi 6 – Ubuntu 24.10 (Preloaded, Switchable) – BUY HERE

The GMKTec G9 provides hardware that closely matches the Beelink ME Mini, since it also uses the Intel N150 processor and 12GB of LPDDR5 memory. It arrives in a more traditional rectangular enclosure and includes four M.2 2280 NVMe slots instead of six. The system contains 64GB of onboard eMMC storage that is mainly used to boot Ubuntu 24.10, and it can dual boot into Windows 11 when an additional SSD is installed. As with the Beelink, there is no SATA support, so all storage relies on NVMe drives up to 4TB each. Cooling is handled by an active fan and the device includes two HDMI outputs, which makes it a stronger option for anyone who wants a small desktop system or direct media output as part of their NAS setup. The manufacturer issued a refresh in summer 2025 that improved the cooling layout with better vent placement and more efficient airflow.

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Synology BeeStation 4TB NAS – ALL IN ONE!

$199 – Realtek RTD1619B – 1GB – 4TB SINGLE BAY – 1x 1GbE – BeeStation Manager (BSM) – BUY HERE

The Synology BeeStation 4TB is a single bay NAS designed for users who want a ready to use system with no installation work. It arrives with a pre installed 4TB hard drive and a sealed enclosure, so there is no need to source or fit storage. The system uses a Realtek RTD1619B ARM processor with 1GB of DDR4 memory and connects through a single 1GbE port. It runs BeeStation Manager, which focuses on beginner friendly features such as cloud style file access, simple photo management, and smooth integration with Synology mobile apps. Synology also released the BeeStation Plus model in 2025 with an Intel processor, more memory, and 8TB of storage, but it sits at roughly double the price. If you are willing to spend more, that model gives you greater performance and capacity.

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UGREEN NASync DXP2800 NAS – The New Challenger!

$249 – Intel N100 – 8GB – No Storage (32GB eMMC) – 1x 2.5GbE – UGOS Pro – BUY HERE

The UGREEN DXP2800 sits in the NASync series and targets users who want a mix of expandability and value. It supports both hard drives and SSDs through two 3.5 inch SATA bays and two M.2 NVMe slots that can be used for caching or fast active data work. The system uses an Intel N100 processor from the twelfth generation energy efficient N series and pairs it with 8GB of DDR5 memory that can be upgraded. A 32GB eMMC module holds the UGOS Pro operating system. Connectivity is built around a single 2.5GbE port with several USB ports on the front and rear including USB C and 10Gbps USB A. UGOS Pro offers a clean web interface with containers, RAID options such as zero, one, and JBOD, simple multimedia features, and remote file access.

UGREEN recently released the DH2300 two bay NAS at a noticeably lower price of roughly 100 to 120 dollars below the DXP2800. That model uses a lower power ARM processor, far less memory, and only one 1GbE port. It is acceptable for very light duties, but most users will benefit from spending a little more on the DXP2800 due to its stronger CPU, memory capacity, and networking.

Although UGOS Pro does not match the ecosystem depth of Synology DSM or QNAP QTS, the DXP2800 remains one of the few turnkey systems in this bracket that supports SSD and HDD storage in a flexible layout without proprietary limits. Users will still need to supply their own drives and configure storage pools, yet the combination of hardware capability and manageable software makes it a strong choice for anyone comfortable handling a modest amount of setup work.

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ZimaBoard 2 (832 Version) – DIY Enthusiast’s DREAM!

$199 – Intel N150 – 8GB – No Storage (32GB eMMC) – 2x 2.5GbE – ZimaOS – BUY HERE

The ZimaBoard 2 (832) is a compact single board NAS platform built for users who want flexibility and modular control rather than a traditional enclosure based system. It arrives as a bare embedded board with all interfaces exposed, which makes it ideal for custom builds. The system uses the Intel N150 quad core processor with 8GB of LPDDR5x memory and includes 32GB of onboard eMMC storage for ZimaOS. The device ships with a lifetime ZimaOS license, which is notable at this price level. It also stands out by providing two powered SATA 3.0 ports, giving it native support for hard drives without any need for USB to SATA adapters. The product is now sold on Amazon, although the price can move between 249 and 349 dollars depending on current stock and promotions, so it is worth watching for discounts.

Connectivity is strong for a low profile platform. It offers two 2.5GbE ports, USB 3.1, a PCIe 3.0 x4 slot, and a Mini DisplayPort output that can deliver 4K60 video. The PCIe slot opens the door for add on networking, storage controllers, or accelerators, although most users will start by using the SATA ports for core NAS storage. The large passive heatsink keeps the board silent, although thermal results will depend on the case you choose and the surrounding environment.

This system suits DIY builders who want to create their own NAS, firewall appliance, lightweight media server, or container host. ZimaOS provides a simple web interface and allows the user to switch to CasaOS or other Linux based platforms if preferred. It is aimed at users who want maximum control and are comfortable managing their own setup rather than those seeking a plug and play NAS.

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Each NAS covered in this guide delivers its own mix of hardware capability, expansion potential, and overall usability while staying within the 249 dollar limit. Users who want a fully prepared option with minimal setup will likely prefer the Synology BeeStation, and anyone who wants a small SSD focused system with stronger customisation features may find the Beelink ME Mini or GMKTec G9 more suitable. The UGREEN DXP2800 stands out for its combination of HDD and SSD support and a more developed software platform, while the ZimaBoard 2 is aimed at technical users who want full control over every layer of the build. None of these devices is a perfect all rounder, yet each one provides a practical entry into local storage, self hosted media, and personal backup without exceeding a modest budget

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Finally, for free advice about your setup, just leave a message in the comments below here at NASCompares.com and we will get back to you. Need Help? Where possible (and where appropriate) please provide as much information about your requirements, as then I can arrange the best answer and solution to your needs. Do not worry about your e-mail address being required, it will NOT be used in a mailing list and will NOT be used in any way other than to respond to your enquiry. [contact-form-7] TRY CHAT Terms and Conditions   Alternatively, why not ask me on the ASK NASCompares forum, by clicking the button below. This is a community hub that serves as a place that I can answer your question, chew the fat, share new release information and even get corrections posted. I will always get around to answering ALL queries, but as a one-man operation, I cannot promise speed! So by sharing your query in the ASK NASCompares section below, you can get a better range of solutions and suggestions, alongside my own.

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Review of the UGREEN NAS UPS – Is the US3000 120W UPS Any Good?

The UGREEN US3000 is a 120 W DC uninterruptible power supply developed specifically for UGREEN NAS devices that rely on an external DC power brick. Unlike conventional UPS systems that convert AC to DC, this model outputs direct 12 V DC power with a zero-second transfer time, ensuring there is no interruption during a power loss. It is equipped with a 12,000 mAh lithium-ion battery pack made up of four 3000 mAh cells, providing a rated energy of 43.2 Wh and up to around ten minutes of backup time depending on workload. Measuring 120.6 × 80.5 × 29.6 mm and weighing approximately 439 g, the US3000 is compact enough for desktop environments where space is limited. Beyond supplying short-term emergency power, it integrates with UGOS Pro software via a USB communication cable, allowing automated shutdown, timed standby, and restart once power is restored. This focus on seamless hardware and software compatibility makes the US3000 notable for users running UGREEN NAS systems that need to mitigate risks of data corruption caused by sudden outages.

UGREEN US3000 UPS Review – Quick Conclusion

The UGREEN US3000 is a purpose-built DC UPS that prioritizes seamless integration with UGREEN NAS systems over broad flexibility. Its compact aluminum chassis houses a 12,000 mAh lithium-ion battery pack capable of delivering 120 W output with zero-second transfer time, ensuring that a connected NAS continues running long enough to perform a safe shutdown. Unlike traditional AC-based UPS units, it avoids conversion inefficiency by supplying direct DC power, while its USB link with UGOS Pro enables automatic shutdown, timed standby, and restart functions. Testing confirmed reliable operation across scenarios from immediate power loss to scheduled shutdowns, with system logs capturing events in under two seconds. However, its design is deliberately narrow in scope: it supports only one NAS at a time, does not extend to routers or switches, and offers limited runtime of around ten minutes under load. For users operating within the UGREEN ecosystem, it provides an efficient and well-integrated safeguard against data corruption during outages. For those needing multi-device protection or long-duration backup, its constrained design and compatibility limit its broader applicability.

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Why the UGREEN US3000 UPS is Important/Interesting

Uninterruptible power supplies are not new, but most consumer models are designed for general computing and rely on bulky lead-acid batteries with AC pass-through. The UGREEN US3000 differs by offering a DC-to-DC solution that matches the external power design of UGREEN NAS units. This means it eliminates the inefficiency of double conversion and avoids the audible transfer delays that can occur with traditional UPS hardware. With a 120 W output ceiling, it is tailored for single-device use rather than multiple systems, but that specificity ensures closer integration with the NAS’s power and shutdown controls. From a technical perspective, its lithium-ion battery pack offers greater energy density than lead-acid, allowing the device to remain compact while still covering several minutes of safe system operation during an outage.

The importance of this UPS becomes clearer when examining how it interacts with UGOS Pro. Unlike generic solutions, the US3000 communicates directly with the NAS operating system via a USB connection, exposing monitoring and automation options in the control panel. Users can configure automatic shutdown after a set period, trigger standby to conserve remaining charge, or enable auto-restart once mains power returns. These features are not just convenient but directly address the risks of corrupted writes, incomplete backups, or damaged RAID arrays during sudden power loss. Given that UGREEN NAS systems are designed for small offices and home use, where environments may not include larger enterprise-grade UPS equipment, the US3000 effectively bridges that gap by offering a purpose-built, compact, and integrated safeguard.

UGREEN US3000 UPS Review – Design

The UGREEN US3000 follows a compact, rectangular form factor with dimensions of 120.6 mm in length, 80.5 mm in width, and 29.6 mm in thickness. Its weight of just under 440 g makes it relatively lightweight for a UPS, reflecting its focus on portability and single-device deployment rather than large-scale power protection. The outer chassis is made from anodized and sandblasted aluminum alloy, which gives it improved durability compared with plastic housings and also aids in passive heat dissipation. The choice of materials ensures a consistent finish that aligns visually with UGREEN’s NAS enclosures, providing an integrated appearance when the two devices are used together on a desktop.

Connectivity is handled entirely through DC and USB ports positioned on a single side of the device. The panel includes a DC input, a DC output, a USB-C port for data communication, and a power button. The fixed DC cable has a length of approximately 28 cm, while the included USB-A to USB-C cable measures around 53 cm, allowing flexible placement next to a NAS system without excess cabling. Each port and control is clearly labeled with printed icons, reducing the likelihood of incorrect setup. Unlike conventional UPS systems that feature multiple AC sockets, the US3000 focuses on a single dedicated output, reflecting its intended role as a companion unit for UGREEN NAS models rather than a general-purpose UPS.

The packaging of the device mirrors UGREEN’s approach with its NAS line, offering clear product imagery and specification highlights on the box exterior. Inside, the unit is provided with a base stand for stable positioning, the aforementioned data cable, and basic documentation. This is a minimalist package compared to conventional UPS units, which often include multiple adaptors or accessories, but the streamlined approach ensures that setup remains straightforward for the intended NAS integration. The inclusion of a stand is particularly useful given the slim design, as it helps keep the UPS stable in vertical placement while maintaining airflow around the chassis.

From a design perspective, the emphasis is on simplicity and integration rather than flexibility. The device does not feature multiple voltage outputs, nor does it support powering unrelated devices such as routers or switches. Instead, its DC pass-through design, small footprint, and single-device orientation mark it as a specialized tool. This aligns with UGREEN’s approach of building a controlled ecosystem around its NAS systems, where accessories are engineered for direct compatibility. The US3000 therefore sits between consumer-grade battery packs and enterprise UPS units, offering a focused solution that fits into a narrow but clearly defined usage scenario.

UGREEN US3000 UPS Review – Internal Power Design

Inside the UGREEN US3000 is a straightforward but carefully constructed layout built around a 12,000 mAh lithium-ion battery pack. The pack consists of four SunPower INR18650-3000 cells, each rated at 3000 mAh and 11.1 Wh, connected in series to deliver a combined rated energy of 43.2 Wh at 14.4 V. The cells are wrapped in foam insulation and secured with adhesive to minimize movement, with spot-welded nickel strips linking them. Additional barley paper insulation is applied around the terminals for added protection. This design choice allows the UPS to maintain compact dimensions while ensuring sufficient runtime for controlled NAS shutdowns.

Battery management is handled by a Chipsea CBM8580KV6NT protection IC. This chip monitors voltage, current, and temperature across the pack, ensuring safe charging and discharge cycles. It communicates with the system host via SMBus 3.1, which enables the UPS to relay real-time status to the NAS when connected through USB. Supporting components include current sense resistors, thermistors, and MOSFETs for switching and power regulation. Together, these ensure not only that the battery operates safely but also that the UPS can reliably deliver 120 W maximum output without voltage instability.

Voltage conversion is performed by a dual-stage arrangement. A Texas Instruments TPS55289 synchronous buck-boost converter handles a wide input range up to 30 V and can output between 0.8 V and 22 V. Alongside this, a SouthChip SC8002 synchronous buck controller manages current limiting and efficiency across dual channels. Power MOSFETs from CR MICRO and NCEPower are used for pass-through control and output switching, while a GigaDevice GD32F303RCT6 Cortex-M4 microcontroller coordinates the overall system, including communication with the NAS. Passive cooling, adhesive reinforcement on inductors and capacitors, and fuses at both input and battery ends further underline the design focus on stability and safety.

UGREEN US3000 UPS Review – Testing with UGREEN NASync Systems

To evaluate the UGREEN US3000, three operational scenarios were simulated: immediate power loss with continued operation, automatic shutdown under UPS control, and timed shutdown with automatic restart when power returned. In each case, the NAS was connected to the UPS using both the DC input and USB communication cable to ensure full integration with UGOS Pro. The first test involved disconnecting mains power to replicate an outage. The NAS continued running without interruption, with the transfer to battery occurring instantly. System logs registered the event in under two seconds, and normal file access, media playback, and downloads remained available until the battery level dropped to the configured threshold.

In the second test, the system was configured to shut down automatically as soon as the UPS switched to battery mode. Once power was removed, the NAS immediately began its shutdown process. This test showed that the UPS integration with UGOS Pro allowed a fast and orderly shutdown sequence, preventing data corruption or incomplete writes. The reaction time was near instantaneous, and the system was powered down safely without user intervention. This mode may be best suited for environments where uptime during an outage is less critical than ensuring rapid data protection.

A third test focused on timed shutdown, with the UPS set to keep the NAS running for five minutes before initiating a safe power-off. Once mains power was disconnected, the NAS continued operating for the specified period, then shut down as configured. After power was restored, the UPS automatically triggered a restart of the NAS, returning it to full operation within a few minutes. This confirmed the UPS’s ability not only to handle outages but also to manage recovery without manual restart, which is beneficial for users who may not be present during a power failure.

During all tests, the device’s limitations became apparent. With a 120 W maximum output and battery capacity limited to 43.2 Wh, it cannot sustain extended operation. Its role is restricted to ensuring controlled shutdowns and short bridging periods rather than providing long-term backup. Furthermore, it supports only one NAS system via DC pass-through, so it cannot protect additional hardware such as routers or switches. Nevertheless, within its defined parameters, the UPS consistently delivered seamless transitions and executed software-triggered events reliably, confirming that its functionality matches its intended scope.

UGREEN US3000 UPS Review – Conclusion & Verdict

The UGREEN US3000 fills a specific role: protecting UGREEN NAS devices from sudden power loss. Its design avoids the bulk and inefficiency of conventional AC-based UPS units by delivering DC pass-through power with zero transfer time. In practice, it provides just enough runtime for the NAS to perform a controlled shutdown, while its software integration ensures automation of both power-off and restart processes. With lithium-ion cells, a compact aluminum chassis, and close alignment with UGOS Pro features, it is engineered as a dedicated accessory rather than a universal power backup solution.

As a result, its usefulness is limited to scenarios where a single UGREEN NAS is the priority. It does not offer multiple outputs or extended backup duration, making it unsuitable for wider network coverage or enterprise requirements. Instead, the US3000 should be viewed as a narrowly focused safeguard that addresses one problem reliably: preventing data corruption and incomplete writes during outages. For users within the UGREEN ecosystem, it is an effective solution, but for broader applications, its scope remains intentionally constrained.

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PROs of the UGREEN US3000 UPS

CONs of the UGREEN US3000 UPS

Zero-second transfer time ensures uninterrupted NAS operation during outages. Compact and lightweight aluminum chassis with integrated heat dissipation. Direct DC pass-through eliminates inefficient AC/DC conversion. Full integration with UGOS Pro, including shutdown automation and restart control. Lithium-ion battery pack provides higher energy density than lead-acid designs. Purpose-built for UGREEN NAS systems with native USB communication support

Limited compatibility, works only with UGREEN NAS models that use external DC input. Short runtime and single-device capacity make it unsuitable for extended or multi-system protection.

 

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This description contains links to Amazon. These links will take you to some of the products mentioned in today's content. As an Amazon Associate, I earn from qualifying purchases. Visit the NASCompares Deal Finder to find the best place to buy this device in your region, based on Service, Support and Reputation - Just Search for your NAS Drive in the Box Below

Need Advice on Data Storage from an Expert?

Finally, for free advice about your setup, just leave a message in the comments below here at NASCompares.com and we will get back to you. Need Help? Where possible (and where appropriate) please provide as much information about your requirements, as then I can arrange the best answer and solution to your needs. Do not worry about your e-mail address being required, it will NOT be used in a mailing list and will NOT be used in any way other than to respond to your enquiry. [contact-form-7] TRY CHAT Terms and Conditions   Alternatively, why not ask me on the ASK NASCompares forum, by clicking the button below. This is a community hub that serves as a place that I can answer your question, chew the fat, share new release information and even get corrections posted. I will always get around to answering ALL queries, but as a one-man operation, I cannot promise speed! So by sharing your query in the ASK NASCompares section below, you can get a better range of solutions and suggestions, alongside my own.

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