Best NAS Under $500 in 2026: 2 Picks for Home Lab

The $500 mark is where NAS hardware gets interesting. Below it, you can still get a quad-core Intel CPU with Quick Sync, 2.5GbE networking, and enough power to run Docker alongside file serving. Above it, you’re paying for premium software ecosystems (the Synology DS925+ costs roughly $600 to $650) or more compute than you may need (the TerraMaster F4-424 Pro).

This guide covers the two current NAS devices we recommend under $500: one for Plex and Docker hosting, and one for beginner-friendly four-bay storage and backup. If you’re building a home lab NAS setup on a budget, one of these will fit. We also explain where Synology and TerraMaster fit at this price.

Our Pick: ASUSTOR AS5402T

The ASUSTOR AS5402T packs an Intel N5105, dual 2.5GbE, and four M.2 NVMe slots into a package that costs roughly $400. It has two SATA bays. If two SATA bays plus NVMe storage cover your needs, it’s the most hardware per dollar in this range.

• CPU: Intel Celeron N5105, 4 cores and 4 threads, up to 2.9 GHz
• Memory: 4 GB DDR4 in two slots, 16 GB maximum (ASUSTOR)
• Storage: 2x 3.5”/2.5” SATA bays + 4x M.2 NVMe (PCIe 3.0 x1)
• Network and ports: 2x 2.5GbE, HDMI 2.0b, 3x USB 3.2 Gen 2
• Rated power and noise: 12.7W with disks hibernating, 22.9W in operation, and 18.6 dB with drives idle (ASUSTOR)

The N5105 combines four Jasper Lake cores, Intel Quick Sync, and a 2.9 GHz burst clock. That’s enough for file serving, several containers, and light hardware-accelerated transcoding.

Four M.2 NVMe slots are the standout. Install NVMe SSDs for a fast tier (Docker volumes and databases) alongside two spinning SATA drives for a slow tier (media and backups). The best 4-bay NAS models typically offer only two M.2 slots. Each slot is PCIe 3.0 x1, so the gain is latency and IOPS rather than per-drive sequential speed.

The compromise is ADM. ASUSTOR’s software is functional, with fewer first-party apps and a smaller community than QTS or DSM, and no equivalent to Synology’s Active Backup suite. Docker is available through App Central, but expect to lean on Portainer or the command line more than on QNAP or Synology.

Buy this if: You want Intel Quick Sync and 2.5GbE for the least money, and two SATA bays plus NVMe give you enough storage. It suits a secondary NAS, a dedicated Plex box, or an SSD-first Docker host.

Best 4-Bay: UGREEN NASync DH4300 Plus

The UGREEN NASync DH4300 Plus is the four-bay pick and the NAS for people who don’t want to think about NAS administration. UGOS Pro walks you through setup, the photo tools are strong, and 8 GB of RAM means light Docker containers run without an upgrade. UGREEN lists it at $439.99.

• CPU: Rockchip 8-core ARM (A76 and A55 cores), up to 2.4 GHz
• Memory: 8 GB LPDDR4X, fixed
• Storage: 4x 3.5”/2.5” SATA bays; no M.2 slots
• Network and ports: 1x 2.5GbE, USB-C, USB 3.2, 4K HDMI, NFC
• AI: 6 TOPS NPU for on-device photo recognition

Four bays support RAID 5, and the eight ARM cores handle file serving, direct-play media, and light Docker containers. The NPU powers on-device photo recognition, including faces and objects, without sending your photos to the cloud, which matters if you’re moving off Google Photos.

The hardware limits are real for home-lab use. With no M.2 slots, there’s no SSD caching, so all storage is SATA. The single 2.5GbE port can’t be aggregated, there’s no PCIe slot, and the 8 GB of memory is fixed. Plex hardware transcoding on Linux supports Intel Quick Sync and NVIDIA, not this ARM chip, so plan on direct play.

UGOS Pro is young software. It supports common tasks: file sharing, photo backup, and Docker through its built-in app, which handles images, containers, and Compose projects. It lacks the depth of DSM or QTS for advanced storage layouts, logging, and permissions. UGREEN supports Docker on this model but not virtual machines, and containers need ARM64 images.

Buy this if: You want four bays and the simplest possible setup with strong photo management. It’s a good fit for family file sharing, phone photo backup, and a few light containers. It’s the wrong pick for Plex transcoding, heavy home-lab workloads, or anyone who wants hardware upgrade paths.

What About TerraMaster?

TerraMaster’s current four-bay range starts with the F4-425 Plus, which TerraMaster lists at $599.99, above this guide’s ceiling. The older F4-223 no longer appears in TerraMaster’s Home/SOHO lineup, so we don’t recommend it as a new purchase. If you see one for sale, treat it as previous-generation hardware and check the warranty terms.

What About Synology?

Synology’s current entry four-bay Plus model is the Synology DS425+, the successor to the DS423+. Per Synology, it has an Intel Celeron J4125 (4 cores, up to 2.7 GHz), 2 GB of DDR4 expandable to 6 GB, one 2.5GbE port plus one 1GbE port, two M.2 NVMe slots, and no PCIe slot. DSM’s backup and management tools remain the best in this class.

We didn’t include it as a pick because we couldn’t confirm that it sells at or under $500. Check its current price. If it fits your budget, it’s the DSM choice at this level, but plan on a memory upgrade before using Docker.

How to Choose: Buying Criteria

CPU Architecture: Intel vs. ARM

Intel CPUs like the ASUSTOR’s N5105 bring two big advantages for home-lab use: hardware video transcoding that Plex supports, and the broadest software compatibility, since most Docker images publish x86 builds first. ARM chips like the UGREEN’s run many containers fine, but some images lack ARM64 builds, and Plex hardware transcoding isn’t available. If you plan to run Plex for remote users or deploy a wide variety of containers, buy Intel.

Networking: 1GbE vs. 2.5GbE

In 2026, 2.5GbE should be the target. A single 1GbE port caps throughput at about 112 MB/s, which is fine for streaming video but a bottleneck for multi-user file access, VM storage, and large backup jobs. Both picks have at least one 2.5GbE port (about 280 MB/s), and the ASUSTOR has two for link aggregation.

RAM: How Much Do You Actually Need?

For basic file serving, 2 GB works. For Docker, 4 GB is the minimum and 8 GB is recommended. For more than five or six containers with databases, plan on 8 to 16 GB. The UGREEN ships with 8 GB but can’t be upgraded; the ASUSTOR starts at 4 GB and takes up to 16 GB, which matters if you add containers over time.

Drive Bays: 2-Bay vs. 4-Bay

Four bays support RAID 5: single-disk redundancy with 75% usable capacity. With four 8 TB drives, you get 24 TB usable. Two bays limit you to RAID 1 (mirroring) with 50% usable capacity, so two 8 TB drives give you 8 TB. The ASUSTOR AS5402T offsets its two SATA bays with four NVMe slots, but if you need bulk hard-drive storage, a four-bay unit like the DH4300 Plus is the better foundation. For more four-bay options above this budget, see our best 4-bay NAS guide.

Expansion and Future-Proofing

Neither pick has a PCIe expansion slot, so choose networking and drive bays for the workload you expect over the appliance’s lifetime. The ASUSTOR’s four M.2 slots offer the most internal flash flexibility; the UGREEN’s four bays favor bulk storage and simple backups.

Bottom Line

The ASUSTOR AS5402T, at roughly $400, is the best all-around choice, with Quick Sync, expandable memory, dual 2.5GbE, and four M.2 slots. If you need four bays and simplicity matters most, the UGREEN DH4300 Plus, listed at $439.99, is the easiest NAS to set up and live with. If you want Synology, check whether the DS425+ fits your budget before you buy; TerraMaster’s current four-bay models start above $500.