QNAP TS-864eU

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Status: Currently sold

A short-depth 2U rackmount NAS with eight hot-swappable 3.5-inch bays, made for shallow racks and network cabinets. Its quad-core Intel Celeron supports hardware transcoding, and there are two 2.5GbE ports plus a PCIe slot for an M.2 adapter or other card. RAM tops out at 16 GB.

Bays	8
CPU	Intel Celeron N5095
Cores / Threads	4 / 4
RAM	4 GB or 8 GB installed (varies by SKU)
Product category	Business Storage
Badge	Short Depth
Hardware support status	Full
OS/app support	Full
Technical support end	Active
Recommended replacement	-
Release year	2024
PCIe slot types	1x PCIe Gen 3 x2
RAM (max)	16 GB
Memory slots	2 / 8
Memory generation	DDR4
ECC memory	Non-ECC
Memory module type	SODIMM
Replaceable memory	Replaceable
Network ports	2x 2.5GbE
USB ports	2x USB 3.2 Gen 2 + 2x USB 2.0
PCIe expansion	1
M.2 slots	None
Drive bay types	3.5-inch bays:; 3.5-inch SATA hard disk drives; 2.5-inch SATA solid state drives
Hot-swappable bays	Yes
CPU frequency (GHz)	2.9
Power draw, active (W)	51.022
Power draw, hibernation (W)	24.776
Power supply (W)	300
Dimensions H x W x D	3.5 x 17 x 11.7 in (89 x 432 x 297 mm)
Weight	17.2 lb (7.78 kg)
Largest certified configuration observed	256 TB (8 x Seagate ST32000NT000, largest drive on the vendor HCL today; not a hardware limit)
Estimated cost to fill every bay with a certified 8 TB drive	about $2,160 new (Seagate ST8000NM017B) / about $2,520 refurbished (Seagate ST8000NE001) / about $1,640 used (Western Digital WD80EFZX) -- one observed eBay unit price incl. shipping x bays; quantity availability unverified
Estimated cost to fill every bay with a certified 16 TB drive	about $4,000 new (Seagate ST16000NM000J) / about $3,400 refurbished (Seagate ST16000NM001G) / about $2,472 used (Seagate ST16000NM001G) -- one observed eBay unit price incl. shipping x bays; quantity availability unverified

• Short-depth design, Intel® quad-core CPU
• Built-in GPU and Intel® OpenVINO™
• 2x 2.5GbE, 1x PCIe slot for 10GbE expansion

View on Amazon Search eBay (used from $2681.36, new from $2080.00) Official product page + Compare

2 eBay listings checked Nov 9, 2026 · 1 new, 1 used

Documents

• Product User Guide (PDF)

Compatible Drives

431 drives certified on TS-864eU's official manufacturer compatibility list, sourced directly from QNAP's own published Hardware Compatibility List. Each model links to that drive's own compatibility page.

Certified list last checked 2026-09-16.

Compatible Memory

2 memory modules listed by QNAP as compatible with TS-864eU. Third-party modules may also work, but are not shown here unless QNAP itself lists them as compatible.

Certified list last checked 2026-09-09. Coverage varies by model. Rated module speed is not a guarantee of NAS operating speed; follow the NAS maximum capacity and installation rules.

Looking for cameras compatible with QNAP NAS units? See the full QNAP camera compatibility database.