NAS Enclosure Price Tracker
Synology, QNAP, TerraMaster, ASUSTOR & UGREEN: Bare, Drive-Less Enclosures
The enclosure and the drives are two separate purchases, and buying them separately is almost always the better value. You pick the exact capacity you want instead of paying a premium for a pre-populated bundle. This tracks current $/bay pricing on bare, drive-less enclosures across the five brands homelabbers and data hoarders actually buy, from 2-bay desktop units up through 8-bay rackmount chassis. Pair it with my disk price tracker to source the drives, and if your unit does 2.5G or 10G, check my switch price tracker too, since a NAS is only as fast as the port it's plugged into.
This is a periodically hand-checked catalog rather than a continuously live feed — see the All Trackers FAQ for how each tracker's freshness works.
Sizing: How Many Bays Do You Actually Need
Bay count is the number that matters most when comparing NAS enclosures across brands, which is why this page sorts by $/bay rather than raw price. It's the closest thing to an apples-to-apples unit of expansion headroom, since a cheap 2-bay unit and a pricier 8-bay unit can have wildly different value depending on what you need to store.
2 bays covers basic mirrored redundancy (RAID1) with no room to grow. 4 bays is the sweet spot for most homelabbers, enough for single-parity redundancy (RAID5/SHR) with real usable capacity and a spare slot for expansion. 5-8 bays starts to matter once you're seriously data hoarding, where dual-parity redundancy (RAID6/SHR-2) protects against a second drive failing mid-rebuild, which becomes a real risk once you're running larger, older drives.
The Five Brands on This Page
Synology
The most polished, locked-down software ecosystem (DSM) with the broadest app support. It comes at a real price premium, and it's grown pickier about non-Synology drives on newer models.
QNAP
More raw hardware and features per dollar than Synology, but has had more publicized security vulnerabilities, so stay current on firmware updates.
TerraMaster
Budget-friendly hardware with a smaller software ecosystem, which appeals most to people planning to run TrueNAS or Unraid instead of the stock firmware.
ASUSTOR
Similar positioning to TerraMaster: competitive hardware specs at a lower price than Synology/QNAP, with a smaller but still active app ecosystem.
UGREEN
The newest of the five, with aggressive hardware per dollar (10GbE and even Thunderbolt 4 on some models), but its UGOS Pro software is younger and thinner than the rest, so it's a good fit if you plan to run TrueNAS or Unraid anyway.
16 enclosures found · prices checked as of Sep 5, 2026
| NAS | Brand | Form Factor | Condition | Bays | Price | $/Bay | Deal |
|---|---|---|---|---|---|---|---|
TerraMaster F4-423 4-Bay NAS - Refurbished, Diskless F4-423 · eBay | TerraMaster | Desktop | Refurbished | 4-Bay | $229.00 | $57.25/bay | Search Listings |
TerraMaster F4-423 4-Bay NAS Enclosure - New, Diskless F4-423 · eBay | TerraMaster | Desktop | New | 4-Bay | $279.00 | $69.75/bay | Search Listings |
QNAP TS-873A 8-Bay NAS Enclosure - Diskless TS-873A · eBay | QNAP | Desktop | Used | 8-Bay | $599.00 | $74.88/bay | Search Listings |
QNAP TS-253D 2-Bay NAS Enclosure - Diskless, Tested Working TS-253D · eBay | QNAP | Desktop | Used | 2-Bay | $159.00 | $79.50/bay | Search Listings |
ASUSTOR AS6704T 4-Bay NAS Enclosure - Diskless, Tested AS6704T · eBay | ASUSTOR | Desktop | Used | 4-Bay | $319.00 | $79.75/bay | Search Listings |
QNAP TS-464 4-Bay NAS Diskless Enclosure TS-464 · eBay | QNAP | Desktop | Used | 4-Bay | $329.00 | $82.25/bay | Search Listings |
Synology DS224+ 2-Bay NAS Enclosure - Diskless DS224+ · eBay | Synology | Desktop | Used | 2-Bay | $179.00 | $89.50/bay | Search Listings |
Synology RS1221+ 8-Bay Rackmount NAS - Diskless RS1221+ · eBay | Synology | Rackmount | Used | 8-Bay | $749.00 | $93.63/bay | Search Listings |
ASUSTOR AS6704T 4-Bay NAS - New Sealed, Diskless AS6704T · eBay | ASUSTOR | Desktop | New | 4-Bay | $389.00 | $97.25/bay | Search Listings |
QNAP TS-464 4-Bay NAS - New Open Box, Diskless TS-464 · eBay | QNAP | Desktop | New | 4-Bay | $399.00 | $99.75/bay | Search Listings |
Synology DS923+ 4-Bay NAS Enclosure - Diskless, Tested DS923+ · eBay | Synology | Desktop | Used | 4-Bay | $429.00 | $107.25/bay | Search Listings |
Synology DS224+ 2-Bay Diskless NAS - New Open Box DS224+ · eBay | Synology | Desktop | New | 2-Bay | $219.00 | $109.50/bay | Search Listings |
Synology DS1522+ 5-Bay NAS Diskless Enclosure DS1522+ · eBay | Synology | Desktop | Used | 5-Bay | $579.00 | $115.80/bay | Search Listings |
UGREEN NASync DXP4800 Plus 4-Bay NAS (10GbE) - Diskless DXP4800 Plus · Newegg | UGREEN | Desktop | New | 4-Bay | $656.99 | $164.25/bay | View Deal |
UGREEN NASync DXP6800 Pro 6-Bay NAS (Thunderbolt 4) - Diskless DXP6800 Pro · Newegg | UGREEN | Desktop | New | 6-Bay | $1,099.99 | $183.33/bay | View Deal |
UGREEN NASync DXP2800 2-Bay NAS (Intel N100) - Diskless DXP2800 · Newegg | UGREEN | Desktop | New | 2-Bay | $389.99 | $195.00/bay | View Deal |
No enclosures match those filters. Try widening your search.
Frequently Asked Questions
Should I buy a bare NAS enclosure or one bundled with drives?
Buying bare and sourcing your own drives, often from a dedicated drive tracker rather than the NAS vendor, is usually cheaper and lets you pick the exact capacity and drive model you want. A bundled unit can be a reasonable convenience if you'd rather not manually test and burn in drives yourself, but you'll typically pay a premium for that.
How many drive bays do I actually need?
2 bays gets you basic mirrored redundancy with no room to grow. 4 bays is the sweet spot for most homelabbers: enough for RAID5/SHR with real capacity and a spare slot. 5-8 bays starts to matter for serious data hoarding, where dual-parity redundancy (RAID6/SHR-2) protects against a second drive failing during a rebuild.
Synology vs QNAP vs TerraMaster vs ASUSTOR vs UGREEN: What's the Real Difference?
Synology has the most polished, locked-down software ecosystem (DSM) with broad app support, but costs more and has grown more restrictive about non-Synology-branded drives on newer models. QNAP offers more raw hardware per dollar and a deeper feature set, but has had more publicized security vulnerabilities, so timely firmware updates matter. TerraMaster and ASUSTOR are the budget-friendlier options with smaller software ecosystems, which appeals most to people planning to run their own OS instead of the stock firmware. UGREEN is the newest entrant, and it shows: aggressive hardware for the price (10GbE and even Thunderbolt 4 show up at lower price points than the competition), but its UGOS Pro software is younger and thinner than the other four, so it appeals most to buyers who plan to run TrueNAS or Unraid anyway.
Can I run TrueNAS or Unraid on one of these instead of the stock OS?
Many x86-based NAS enclosures (most QNAP, TerraMaster, ASUSTOR, and UGREEN units, and some Synology Plus-series models) can run TrueNAS SCALE or Unraid instead of, or alongside, the stock firmware. UGREEN's NASync line is a standard x86 machine under the hood and is explicitly marketed as friendly to this. Compatibility varies model to model though, especially for vendor-specific hardware like front-panel LED and LCD control. Search your exact model number plus "TrueNAS" or "Unraid" to see what other owners ran into.
Should I worry about buying a used NAS enclosure?
It's a relatively low-risk used purchase. The parts that actually wear out in a NAS (fans and the power supply) are common and usually inexpensive to replace, and the drive bay backplane rarely fails since it sees far less stress than the drives themselves. Just make sure all the drive trays are included: they're often proprietary to the model and hard to track down separately if any are missing.