Best NAS Under $500 (2026)
Checked October 17, 2026
Our current picks for this
These passed our buyer-review check (4+ stars, real review volume, and no reliability or durability complaints outnumbering praise) and link to the exact Amazon listing. Stock is re-checked daily.
For most buyers the best NAS under $500 is the QNAP TS-264: dual 2.5GbE, two NVMe slots and 8GB of RAM out of the box, more hardware than any rival at its tier. Want four bays for the same money? The TerraMaster F4-424 is the raw hardware-value pick and openly supports TrueNAS or Unraid. The UGREEN NASync DXP2800 is the modern-hardware bargain if you can live with a young software ecosystem, and the Synology DS225+ is the turnkey box if you want photos, files and backups working tonight and will accept its 6GB RAM ceiling. Three things apply to all of them: the price is enclosure only and the drives are the other half of the purchase, the drives must be CMR NAS-rated, never SMR, and RAID is not a backup.
The one thing to know: RAID is not a backup. RAID (except RAID 0) protects against DRIVE failure — if one disk dies, the array keeps running while you replace it. It does nothing against the things that actually destroy data: accidental deletion, ransomware, file corruption, a failed controller, theft, fire, or a power surge that takes the whole box. All of those hit the live array and every mirror of it at once. RAID is about uptime and availability; a backup is a separate, ideally offline or off-site copy you can restore from. You need both, and 'I have RAID' is the single most common — and most dangerous — misconception in home storage.
The under-$500 picks, ranked, with the honest drawback on each
Research-based picks (how we evaluate) built from manufacturer specifications, not a scoring rubric. We never print a price: "under $500" is the bracket you searched for, and the boxes below are the enclosures on our roster that carry an entry, value or mid tier band, which is where that search usually lands. Enclosure prices move, so confirm on the live listing. Live Amazon search links, no prices or star ratings, and every enclosure ships empty: the drives row at the end is the other half of the purchase.
QNAP TS-264
Tier band: Mid tier (enclosure only)
2 bays · Intel Celeron N5105 quad-core · 8GB DDR4 (expandable to 16GB) · 2× 2.5GbE · 2× M.2 PCIe Gen3 NVMe · HDMI 4K out · QTS or QuTS hero (ZFS) · hardware transcoding
More hardware per dollar than the 2-bay Synology: dual 2.5GbE out of the box, two NVMe slots for cache or an all-flash pool, 8GB RAM standard, and an HDMI port for direct media output.
Best for: Value-focused buyers who want multi-gig networking and NVMe on a 2-bay without paying up
Our verdict: The most speed per dollar of any 2-bay here — dual 2.5GbE, two NVMe slots, and 8GB RAM out of the box. If you'd rather have hardware than hand-holding, this is the 2-bay to get.
Check price on AmazonNot deciding today? Add it to your cart over there — Amazon keeps it saved (and flags any price change) until you're ready.
Watch out: QNAP has a real history of internet-facing ransomware campaigns (e.g. DeadBolt/Qlocker) hitting units that were exposed to the open internet or left unpatched — keep it behind your router, disable UPnP/port-forwarding, and patch promptly. QTS is also busier and less beginner-friendly than DSM.
TerraMaster F4-424
Tier band: Value / mid tier (enclosure only)
4 bays · Intel N95 quad-core · 8GB DDR5 (expandable to 32GB) · 2× 2.5GbE · TOS 6 operating system · also supports third-party OS (TrueNAS / Unraid) · hardware transcoding
The most raw hardware per dollar here — a current N95 CPU, 8GB of DDR5 expandable to 32GB, and dual 2.5GbE — and TerraMaster openly documents installing TrueNAS or Unraid if you outgrow its own OS.
Best for: Budget-conscious buyers who value hardware specs and the option to run a third-party NAS OS
Our verdict: Flat-out the most hardware for the money in this list — and because TerraMaster openly supports TrueNAS and Unraid, it's our favorite budget 4-bay to buy as a long-term platform, not just an appliance.
Check price on AmazonNot deciding today? Add it to your cart over there — Amazon keeps it saved (and flags any price change) until you're ready.
Watch out: TerraMaster's own TOS software is less mature and less polished than Synology DSM, with a smaller app catalog, and the brand has had past security-hardening criticism — keep it off the open internet. Its main appeal for many buyers is as capable hardware to run TrueNAS/Unraid on, not the bundled OS.
UGREEN NASync DXP2800
Tier band: Value / mid tier (enclosure only)
2 bays · Intel N100 quad-core · 8GB DDR5 (single SODIMM, expandable to 16GB) · 1× 2.5GbE · 2× M.2 NVMe · HDMI 4K/8K out · UGOS Pro · also runs third-party OS (TrueNAS etc.) · hardware transcoding
Strong, current hardware for the money — an Intel N100, 8GB of DDR5, and two NVMe slots — from a well-known accessories brand, and it's openly friendly to installing TrueNAS or other operating systems.
Best for: Value buyers and DIY-curious users who want modern hardware and the freedom to run their own NAS OS
Our verdict: The modern-hardware bargain of the 2-bays: an Intel N100, DDR5, and NVMe slots at an entry price — and it runs TrueNAS happily if you ever outgrow UGOS. An easy recommendation for value buyers.
Check price on AmazonNot deciding today? Add it to your cart over there — Amazon keeps it saved (and flags any price change) until you're ready.
Watch out: UGREEN's NASync line and its UGOS Pro software are new (launched via crowdfunding in 2024), so the OS is still maturing and the long-term update and security track record is unproven versus Synology/QNAP. It also has only a single 2.5GbE port. Many buyers treat it primarily as good hardware for TrueNAS.
Synology DiskStation DS225+
Tier band: Entry / budget tier (enclosure only, drives extra)
2 bays · Intel Celeron J4125 quad-core (2.0GHz, 2.7GHz turbo) · 2GB DDR4 non-ECC (one slot, expandable to 6GB) · 1× 2.5GbE + 1× 1GbE · no M.2 NVMe slots · DSM operating system · hardware H.264/H.265 transcoding
The lowest-friction way into NAS, now with a 2.5GbE port: Synology's DSM is the most polished, best-documented NAS operating system, with the widest first-party app ecosystem (Photos, Drive, backup tools), and the J4125's integrated graphics handles Plex hardware transcoding of common codecs.
Best for: First-time buyers who want a photo/file/backup appliance that 'just works' without homelab tinkering
Our verdict: If you want photos, files, and backups working tonight with zero homelab tinkering, this is the box to buy: DSM is the most polished NAS software there is, the DS225+ is the easiest way to get it, and it finally adds a 2.5GbE port.
Check price on AmazonNot deciding today? Add it to your cart over there — Amazon keeps it saved (and flags any price change) until you're ready.
Watch out: Under the new case it is the DS224+'s platform: the same Celeron J4125 and 2GB of RAM (6GB official maximum), which is tight for many apps, and only one of its two network ports is 2.5GbE. No NVMe slots. As a 2025 Plus model it falls under Synology's newer drive policy: on DSM 7.3, hard drives that are not on Synology's list can be used for new storage pools, but Synology only guarantees full functionality with listed drives, so check the compatibility list before buying.
The Drives NAS Hard Drives — WD Red Plus / Seagate IronWolf (CMR)
Tier band: Priced per drive by capacity (bought separately from the enclosure)
3.5" NAS-rated hard drives · CMR (conventional) recording — NOT SMR · rated for 24×7 operation and multi-drive vibration · NASware / AgileArray firmware · common home capacities run through the mid-double-digit-TB range
Every NAS above ships as an empty enclosure — the drives are the other half of the purchase. NAS-rated CMR drives (WD Red Plus, Seagate IronWolf) are built for 24×7 duty, vibration in multi-bay chassis, and RAID rebuilds, which desktop drives are not.
Best for: Anyone buying a NAS enclosure who needs reliable, rebuild-safe drives to populate it
Our verdict: Whichever enclosure you choose, NAS-rated CMR drives are the right call — WD Red Plus and Seagate IronWolf are both proven lines built for 24×7 array duty, and either one belongs in your cart alongside the enclosure.
Check price on AmazonNot deciding today? Add it to your cart over there — Amazon keeps it saved (and flags any price change) until you're ready.
Watch out: Avoid SMR (shingled) drives in a NAS RAID array — SMR's slow re-write behavior can make RAID rebuilds crawl or fail. The plain WD Red (non-Plus) and many cheap desktop/external-shucked drives are SMR; confirm CMR on the spec sheet. Buy from a source with a clear return path in case of early failure, and always run a NAS with a real backup — RAID is not a backup.
Complete your setup
NAS-ready hard drives (CMR)
Every enclosure above ships empty. Seagate IronWolf and WD Red Plus are the two proven NAS-rated CMR lines — confirm CMR on the spec sheet before you buy.
Shop on Amazon →UPS battery backup
A NAS hates dirty shutdowns — a power cut mid-write can corrupt an array. A UPS in the APC Back-UPS line lets the NAS shut down cleanly when the lights go out.
Shop on Amazon →Cat6 Ethernet cable
2.5GbE is only as good as the cable. Cat6 handles 2.5GbE (and 10GbE at short runs) — a cheap fix for a NAS still hanging off an old patch lead.
Shop on Amazon →What does under $500 actually buy?
Three realities of the budget bracket that the bay-count marketing never mentions:
The enclosure is half the bill
Every NAS here ships empty. NAS-rated CMR drives (WD Red Plus, Seagate IronWolf) are bought separately and priced per drive by capacity, so the real budget is enclosure plus two or more drives. Size the drives for the data you will have in three years, not the data you have today.
2-bay mirror math, or 4-bay (n-1) math
A 2-bay in RAID 1 gives you ONE drive's worth of usable space: 2×8TB = 8TB. A 4-bay in RAID 5 or single-redundancy SHR gives up only one drive: 4×8TB ≈ 24TB usable, with one-at-a-time upgrades instead of the 2-bay's both-drives upgrade trap. At this bracket the F4-424 is the 4-bay that fits. How many bays do you really need? →
Hardware value or software polish, not both
Synology sells software polish on older, slower hardware (a 2020-era Celeron, 2GB base RAM, no NVMe on the DS225+). QNAP, TerraMaster and UGREEN sell current hardware (2.5GbE, NVMe, 8GB) with software that is either busier (QTS), less mature (TOS) or younger (UGOS Pro). Decide which you are paying for.
The spec that splits this bracket: 2.5GbE vs 1GbE
2.5GbE matters because 1GbE is the real bottleneck in most NAS setups. A 1GbE link tops out around 110–118MB/s of actual throughput — and a single modern hard drive already reads at roughly 180–280MB/s sequentially, so on gigabit you're leaving half the drive's speed on the table, and a RAID array or NVMe cache is throttled even harder. 2.5GbE lifts the ceiling to ~280MB/s, roughly matching one fast HDD and dramatically improving large-file transfers. It's the single most worthwhile 'speed' upgrade for home NAS; 10GbE only pays off with NVMe pools or many-drive arrays. All four picks now ship 2.5GbE: the TS-264 and F4-424 with two ports, the DXP2800 and the Synology DS225+ with one (the DS225+ pairs it with a 1GbE port; its predecessor, the DS224+, was 1GbE only). 2.5GbE vs 1GbE, in full →
How do the four compare on the specs that decide it?
From our master spec data: CPU class, RAM ceiling, networking, NVMe, operating system and whether the chip can hardware-transcode. None of these four has ECC; that is a feature of the prosumer tier below.
| Feature | QNAP TS-264 | TerraMaster F4-424 | UGREEN DXP2800 | Synology DS225+ |
|---|---|---|---|---|
| Bays | 2 | 4 | 2 | 2 |
| CPU class | Celeron N5105 (x86) | Intel N95 (x86) | Intel N100 (x86) | Celeron J4125 (x86) |
| RAM base → max | 8GB → 16GB | 8GB → 32GB | 8GB → 16GB | 2GB → 6GB |
| Networking | 2× 2.5GbE | 2× 2.5GbE | 1× 2.5GbE | 1× 2.5GbE + 1× 1GbE |
| NVMe slots | 2× M.2 | Varies by rev. | 2× M.2 | None |
| OS | QTS / QuTS | TOS / TrueNAS | UGOS / TrueNAS | DSM |
| iGPU / transcoding | Yes (Intel iGPU, hardware transcoding) | Yes (Intel iGPU, hardware transcoding) | Yes (Intel iGPU, hardware transcoding) | Yes (J4125, H.264/H.265) |
What you give up versus the tier above
Just above this bracket, the Synology DS425+ buys DSM at four bays: the same J4125 and 6GB RAM ceiling as the DS225+, plus two M.2 slots for SSD cache. Synology's ECC 4-bay, the DS925+, is what more money buys: ECC memory expandable to 32GB and two 2.5GbE ports, but no integrated GPU, so it is a poor Plex transcoding box, which is exactly the job many budget buyers want done. The mid-tier 4-bays, the QNAP TS-464 (PCIe Gen3 slot for a 10GbE card later) and the UGREEN DXP4800 (dual 2.5GbE, four bays plus two M.2), and the Asustor AS5404T with its four M.2 slots, sit between the two. If the budget stretches, start with best 4-bay NAS; if the question is whether you need ECC at all, read ECC is nice, not mandatory first.
Which drives belong in a budget NAS?
NAS-rated drives use CMR (conventional magnetic recording); many cheap desktop and external drives use SMR (shingled), which overlaps tracks to pack in more capacity but must rewrite whole zones on write, making sustained and random writes slow. In a NAS this matters most during a RAID rebuild: an SMR drive can slow a rebuild to a crawl or cause it to drop out of the array, risking a second failure before it finishes. Use CMR NAS drives (WD Red Plus, Seagate IronWolf) in an array; the plain WD Red was infamously SMR. Always confirm CMR on the spec sheet. The temptation at this bracket is to save on drives after spending on the enclosure. Do not: a rebuild after a failure is your single window of vulnerability, and an SMR drive stretching that window is exactly the risk you bought RAID to avoid. CMR vs SMR, decoded →
Decode the claims first
Frequently Asked Questions
For most buyers it is the QNAP TS-264: a 2-bay with dual 2.5GbE, two M.2 NVMe slots and 8GB of RAM out of the box, which is more hardware than any rival at its tier. If you want four bays in the same money, the TerraMaster F4-424 is the raw hardware-value pick (Intel N95, 8GB DDR5 expandable to 32GB, dual 2.5GbE) and openly supports TrueNAS or Unraid. If you want the most polished software and the least tinkering, the Synology DS225+ is the turnkey box, at the cost of 2GB base RAM (6GB maximum), one 2.5GbE port and no NVMe. All of these are enclosure prices only: the drives are a separate purchase, and prices move, so confirm the bracket on the live listing.
No. Every NAS on this page ships as an empty enclosure, and the drives are the other half of the purchase, priced per drive by capacity. Budget for NAS-rated CMR drives (WD Red Plus or Seagate IronWolf) on top of the enclosure. Avoid SMR (shingled) drives in a RAID array: their slow rewrite behavior can make a rebuild crawl or fail, and the plain WD Red (non-Plus) and many cheap desktop or shucked drives are SMR. Confirm CMR on the spec sheet.
A 2-bay mirror (RAID 1) gives you one drive's worth of usable space (2×8TB = 8TB) and covers most homes: photos, documents, PC backups and a light media library. A 4-bay in RAID 5 or single-redundancy SHR gives you roughly (n-1) drives of usable space (4×8TB ≈ 24TB) plus one-at-a-time capacity upgrades and an escape hatch to two-drive redundancy. At this bracket the TerraMaster F4-424 is the 4-bay that fits; a 4-bay running only two drives at first is often the smarter buy because it keeps a growth path a 2-bay can never offer.
All four picks have Intel CPUs with integrated graphics that handle hardware transcoding: the QNAP TS-264 (N5105), TerraMaster F4-424 (N95), UGREEN DXP2800 (N100) and Synology DS225+ (J4125, H.264/H.265). The TS-264, F4-424 and DXP2800 have the edge for a media-heavy setup because of newer CPUs, more RAM and NVMe slots; the DS225+'s 2GB base RAM (6GB maximum) makes it the weakest of the four for that job.
It is if the appliance experience is what you are buying. DSM is the most polished, best-documented NAS operating system, with the widest first-party app ecosystem, and the DS225+ is the lowest-friction way into NAS. What you give up is hardware: a 2020-era Celeron J4125, 2GB base RAM (6GB maximum), one 2.5GbE port rather than two, and no NVMe. QNAP, TerraMaster and UGREEN sell current hardware (2.5GbE, NVMe, 8GB) with software that is either busier (QTS), less mature (TOS) or younger (UGOS Pro).
No. RAID (except RAID 0) protects against one drive failing, keeping the array online while you replace the disk. It does nothing against accidental deletion, ransomware, corruption, theft, fire or a power surge, all of which hit the live array and every mirror at once. Treat the NAS as one copy in a 3-2-1 scheme: 3 copies, 2 media types, 1 off-site. A budget NAS plus a cloud or off-site copy is a real setup; a NAS alone is not.
How we work
We're a research-based site: we analyze manufacturer specifications, storage and filesystem engineering, and aggregated owner-feedback themes rather than lab-testing every enclosure. We explain tradeoffs plainly, always name a downside, and report measurable specs, never a guarantee about data safety. RAID is not a backup, drives fail, and only a tested 3-2-1 backup protects your data. Read our full methodology →