7 Best Budget NAS Devices for Your Plex Server in 2025 (Under $400)

Building a reliable Plex media server doesn’t require emptying your wallet. If you’re searching for a budget NAS for Plex server that can handle your streaming needs without breaking the bank, you’re in the right place. Today’s affordable network-attached storage devices pack enough punch to transcode your media library and serve multiple streams simultaneously—all while staying under $400.

After extensive research into current market offerings and real-world performance specifications, I’ve compiled this guide to help you choose the perfect budget NAS for your Plex setup. Whether you’re streaming to a single TV or supporting family members across multiple locations, there’s an option here that’ll fit your needs and budget.

Top Budget NAS Picks for Plex Server at a Glance

• Best Overall: TerraMaster F2-425 – Outstanding performance for the price with Intel processor
• Best 4-Bay Option: QNAP TS-464 – Excellent transcoding capabilities and expandability
• Best Entry-Level: Synology DS223j – Perfect for beginners with user-friendly software
• Best Value 2-Bay: ASUSTOR Drivestor 2 Pro AS3302T – Solid performance at an attractive price point
• Most Compact: TerraMaster F2-223 – Space-saving design without sacrificing functionality
• Best for Upgradability: QNAP TS-233 – Room to grow with your media collection
• Budget Champion: Synology DS223 – Reliable performance from a trusted brand

Detailed Reviews: Best Budget NAS for Plex Server

1. TerraMaster F2-425 – Best Overall Budget NAS for Plex

The TerraMaster F2-425 stands out as the best overall choice for budget-conscious Plex users who refuse to compromise on performance. This 2-bay NAS features an Intel Celeron N5095 processor with four cores running at up to 2.9GHz, delivering impressive transcoding capabilities that rival much more expensive options.

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What makes the F2-425 particularly appealing is its ability to handle hardware transcoding efficiently. The Intel processor includes integrated graphics that Plex can leverage for smooth 4K transcoding, allowing you to stream high-quality content to devices that might not support direct play. With 4GB of DDR4 RAM (expandable to 16GB), this NAS handles multiple concurrent streams without breaking a sweat.

The single 2.5GbE port provides fast network throughput, more than sufficient for serving multiple Plex streams simultaneously. An HDMI port on the rear also allows direct connection to a display for local playback. Storage flexibility is another strong point—the F2-425 supports drives up to 30TB each, giving you plenty of room for a massive media library.

Pros:

• Powerful Intel Celeron N95 processor handles 4K transcoding
• Expandable RAM up to 32GB for future growth
• Dual Gigabit Ethernet ports with link aggregation
• HDMI 2.0 output for direct connection to displays
• Excellent value for performance delivered

Cons:

• TOS operating system isn’t as polished as Synology’s DSM
• Only two drive bays limit redundancy options
• Brand recognition lower than QNAP or Synology

2. QNAP TS-464 – Best 4-Bay Budget NAS for Plex Server

If you need more drive bays for expansion or better redundancy, the QNAP TS-464 is your best bet under $400. This 4-bay powerhouse features an Intel Celeron N5105 quad-core processor that provides excellent Plex transcoding performance while maintaining energy efficiency.

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The TS-464 comes with 4GB or 8GB of DDR4 RAM depending on configuration, which is generous for this price range. QNAP’s QTS operating system offers extensive customization options and a rich app ecosystem, making it ideal for users who want to expand beyond just Plex into other home lab applications. The included PCIe Gen 3 slot opens up possibilities for adding 10GbE networking, additional storage controllers, or other expansion cards down the road.

For Plex specifically, the hardware transcoding engine in the N5105 handles multiple 1080p streams or a couple of 4K streams comfortably. The four drive bays let you configure RAID 5 for optimal storage efficiency with protection, or RAID 10 if you prioritize performance and redundancy over capacity.

Pros:

• Four drive bays provide excellent expansion and RAID options
• 4GB or 4GB or 4GB or 4GB or 4GB or 4GB or 8GB RAM included (expandable to 16GB)
• PCIe slot for future upgrades
• Strong hardware transcoding capabilities
• Comprehensive QTS operating system

Cons:

• Approaches upper end of budget range
• QTS interface can feel overwhelming for beginners
• Louder fan noise than some competitors

3. Synology DS223j – Best Entry-Level Budget NAS for Plex

The Synology DS223j represents the most accessible entry point into the Synology ecosystem, which is renowned for its intuitive DiskStation Manager (DSM) operating system. While the Realtek RTD1619B quad-core processor isn’t as powerful as Intel options, it’s perfectly adequate for direct play scenarios and light transcoding.

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Where the DS223j truly shines is software experience. Synology’s DSM is widely considered the most user-friendly NAS operating system, with a clean interface, excellent documentation, and reliable Plex integration through the official package. If this is your first NAS and you value simplicity over raw horsepower, the DS223j won’t disappoint.

The 1GB of RAM is modest and non-expandable, which limits the number of concurrent operations you can run smoothly. However, for a household with one or two users primarily using direct play (where Plex doesn’t need to transcode), the DS223j provides reliable performance. The two drive bays support up to 36TB of total storage (18TB drives), which is ample for most home media libraries.

Pros:

• Exceptional DSM operating system—easiest to use
• Reliable Synology build quality and support
• Energy efficient with low power consumption
• Quiet operation suitable for living spaces
• Strong community and extensive documentation

Cons:

• Limited transcoding power compared to Intel-based options
• Only 1GB RAM, not expandable
• ARM processor lacks hardware transcoding acceleration
• Best suited for direct play scenarios

4. ASUSTOR Drivestor 2 Pro AS3302T – Best Value 2-Bay NAS

ASUSTOR might not have the brand recognition of Synology or QNAP, but the Drivestor 2 Pro AS3302T delivers impressive value. Powered by an ARM-based Realtek RTD1619B quad-core processor running at 1.7GHz, this compact NAS punches above its weight class for Plex transcoding.

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The AS3302T includes 2GB of DDR4 RAM, expandable to 16GB, providing flexibility as your needs grow. ASUSTOR’s ADM operating system has matured considerably in recent years and now offers a well-rounded experience with good Plex integration. The Realtek processor’s hardware transcoding engine enables smooth 4K H.265 decoding, allowing the AS3302T to handle media streaming without taxing the CPU.

One standout feature is the three USB 3.0 ports, which allow you to connect external storage or expansion units for up to 14 drive bays total—impressive flexibility for a 2-bay device.

Pros:

• Intel Celeron N5105 with excellent transcoding
• RAM expandable to 16GB
• Three USB 3.0 ports for external storage expansion
• Competitive pricing for the specifications
• Single 2.5GbE port for faster network speeds

Cons:

• ADM operating system less mature than competitors
• Smaller user community for troubleshooting
• Only two drive bays

5. TerraMaster F2-223 – Most Compact Budget NAS

The TerraMaster F2-223 prioritizes space efficiency without sacrificing essential features for Plex streaming. This compact 2-bay NAS measures smaller than many competitors, making it ideal for tight spaces or minimal desk setups. The Intel Celeron N4505 dual-core processor provides adequate performance for 1080p transcoding and excellent direct play capabilities.

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With 2GB of DDR4 RAM (expandable to 32GB), the F2-223 offers surprising upgrade potential for future-proofing your investment. The dual Gigabit Ethernet ports support link aggregation, and the unit includes an HDMI output for versatile connectivity options. While not the most powerful option on this list, the F2-223 represents an excellent balance of size, features, and price.

TerraMaster’s TOS operating system continues to improve with regular updates, and the Plex integration works reliably. The compact form factor also translates to quieter operation and lower power consumption—important considerations if your NAS will live in a bedroom or shared living space.

Pros:

• Extremely compact footprint
• RAM expandable to 32GB
• Quiet operation and low power draw
• Single 2.5GbE port with HDMI output
• HDMI output included

Cons:

• Intel N4505 processor less powerful than N5105 options
• Limited to 1080p transcoding for most scenarios
• TOS software still developing

6. QNAP TS-233 – Best for Future Upgradability

The QNAP TS-233 serves users who want a budget-friendly entry point with room to grow. Built around an ARM-based Cortex-A55 quad-core processor, this 2-bay NAS prioritizes energy efficiency and expandability over raw transcoding power. While the ARM processor won’t handle hardware-accelerated transcoding like Intel options, it’s perfectly capable for direct play scenarios and light transcoding workloads.

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What makes the TS-233 particularly interesting is the 2GB of DDR4 RAM (expandable to 16GB) and the inclusion of two 2.5GbE ports right out of the box. As more homes adopt faster networking infrastructure, having 2.5GbE capability ensures your NAS won’t become a bottleneck. The QTS operating system provides extensive features and excellent app support, including robust Plex integration.

If your primary use case involves streaming content that your devices can direct play (meaning no transcoding required), the TS-233 offers excellent value with future-proof networking and plenty of RAM headroom for running additional applications alongside Plex.

Pros:

• Two 2.5GbE ports for faster networking
• RAM expandable to 16GB
• Energy efficient ARM processor
• Comprehensive QTS operating system
• Excellent for direct play scenarios

Cons:

• ARM processor lacks hardware transcoding acceleration
• Limited transcoding capability
• Not ideal if you need frequent transcoding

7. Synology DS223 – Budget Champion from a Trusted Brand

The Synology DS223 bridges the gap between the entry-level DS223j and more expensive Intel-based options. Featuring a Realtek RTD1619B quad-core processor similar to the DS223j but with improved specifications, the DS223 offers better overall performance while maintaining Synology’s legendary user experience through DSM.

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With 2GB of DDR4 RAM (non-expandable), the DS223 provides enough memory for smooth Plex operation alongside other basic NAS tasks. The two drive bays support SHR (Synology Hybrid RAID) or traditional RAID configurations, and the unit can handle drives up to 18TB each. While transcoding capabilities remain limited compared to Intel options, the DS223 excels at direct play and light transcoding workloads.

If you’re invested in the Synology ecosystem or prioritize ease of use and reliable support above maximum transcoding performance, the DS223 represents a solid middle-ground option that won’t leave you frustrated with complexity.

Pros:

• Outstanding DSM operating system
• Reliable Synology quality and support
• 2GB RAM for better multitasking than DS223j
• Energy efficient and quiet operation
• Strong community resources

Cons:

• RAM not expandable
• Limited transcoding capability with ARM processor
• Higher price than competitors with similar specs

Budget NAS for Plex Server Comparison Table

Model	Processor	RAM	Drive Bays	Network	Transcoding	Best For
TerraMaster F2-425	Intel Celeron N95	4GB (32GB max)	2	1x 2.5GbE	Excellent	Overall performance
QNAP TS-464	Intel Celeron N5105	8GB (16GB max)	4	2x 2.5GbE	Excellent	Expansion & RAID
Synology DS223j	Realtek RTD1619B	1GB	2	1x 1GbE	Limited	Beginners