8-Bay Short-Depth Rackmount NAS
QNAP TS-864eU-4G Short-Depth Rackmount NAS
An eight-bay 2U short-depth NAS with an Intel Celeron N5095 quad-core processor, dual 2.5GbE ports, HDMI output and a compact 297.4 mm chassis.
Compact eight-bay rack storage for limited-depth installations
The QNAP TS-864eU-4G combines eight SATA bays with a 297.4 mm-deep 2U chassis. Dual 2.5GbE, Intel UHD Graphics, HDMI 1.4b, hardware-accelerated transcoding and PCIe expansion support storage, backup, hybrid-cloud and media workflows without requiring a full-depth chassis.
Key features and benefits
Short-depth 2U chassis
The compact depth suits smaller racks, media cabinets and installations with substantial rear cabling.
Dual 2.5GbE connectivity
Two 2.5GbE RJ45 ports support multi-gigabit access and port trunking.
Integrated graphics and HDMI
Intel UHD Graphics, HDMI 1.4b and hardware-accelerated transcoding are included.
PCIe expansion
One PCIe Gen 3 x2 slot supports compatible network, QM2 or USB expansion cards within the stated dimensions.
QTS and QuTS hero path
The system runs QTS by default and can switch to QuTS hero starting from QTS 5.2.2.
Backup and hybrid cloud
The stated feature set covers backup workflows and cloud storage gateways with local caching.
Who is this model best for?
A strong choice for
- Short-depth rack installations
- Business storage and backup
- Hybrid-cloud gateway workflows
- HDMI-connected media use
- Sites that do not require redundant power
Consider another model if you need
- You require redundant power supplies
- You need built-in 10GbE connectivity
- You need built-in M.2 slots rather than an optional PCIe adapter
Key specifications
- Processor
- Intel Celeron N5095, 4-core/4-thread, burst up to 2.9 GHz
- Maximum memory
- 16 GB (2 × 8 GB)
- Drive bays
- 8 × 3.5-inch SATA 6Gb/s, 3Gb/s
- Drive compatibility
- 3.5-inch SATA HDD; 2.5-inch SATA SSD
- Networking
- 2 × 2.5GbE RJ45
- Expansion
- 1 × PCIe Gen 3 x2 slot
- USB
- 2 × USB 2.0; 2 × USB 3.2 Gen 2 Type-A
- HDMI
- 1 × HDMI 1.4b
- Dimensions
- 88.6 × 432 × 297.4 mm
- Power supply
- 300W, 100–240V
Full technical specifications
Processor, memory and storage
| CPU | Intel® Celeron® N5095 4-core/4-thread processor, burst up to 2.9 GHz |
|---|---|
| CPU Architecture | 64-bit x86 |
| Graphic Processors | Intel® UHD Graphics |
| Floating Point Unit | Supported |
| Encryption Engine | Supported (AES-NI) |
| Hardware-accelerated Transcoding | Supported |
| Maximum Memory | 16 GB (2 x 8GB) |
| Flash Memory | 4GB (Dual boot OS protection) |
| Drive Bay | 8 x 3.5-inch SATA 6Gb/s, 3Gb/s |
| Drive Compatibility | 3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA solid state drives |
| Hot-swappable | Supported |
| M.2 Slot | Optional via a PCIe adapter |
| SSD Cache Acceleration Support | Supported |
| Max. Number of Concurrent Connections (CIFS) - with Max. Memory | 1500 |
Network, ports and expansion
| 2.5 Gigabit Ethernet Port (2.5G/1G/100M) | 2 (2.5G/1G/100M/10M) |
|---|---|
| 5 Gigabit Ethernet Port (5G/2.5G/1G/100M) | Optional via network adaptor |
| 10 Gigabit Ethernet Port | Optional via network adaptor Optional via PCIe expansion card |
| Wake on LAN (WOL) | Supported |
| Jumbo Frame | Supported |
| PCIe Slot | 1 Slot 1: PCIe Gen 3 x2 Card dimensions for PCIe slot 1:97 x 68.9 x 18.76 mm / 3.82 x 2.71 x 0.74 inches. |
| USB 2.0 port | 2 |
| USB 3.2 Gen 2 (10Gbps) Port | 2 x Type A USB 3.2 Gen 2 |
| HDMI™ Output | 1, HDMI™ 1.4b |
Physical, environmental and power
| Form Factor | 2U Short Depth Rackmount |
|---|---|
| LED Indicators | HDD 1-8, Status, LAN, Expansion, Power |
| Buttons | Power, Reset |
| Dimensions (HxWxD) | 88.6 × 432 × 297.4 mm |
| Weight (Net) | 7.78 kg |
| Weight (Gross) | 9.27 kg |
| Operating Temperature | 0 - 40 °C (32°F - 104°F) |
| Storage Temperature | -20 - 70°C (-4°F - 158°F) |
| Relative Humidity | 5-95% RH non-condensing, wet bulb: 27°C (80.6°F) |
| Power Supply Unit | 300W, 100-240V |
| Power Consumption: HDD Sleep Mode | 24.776 W |
| Power Consumption: Operating Mode, Typical | 51.022 W Tested with drives fully populated. |
| Fan | 3 x 60mm, 12VDC |
| System Warning | Buzzer |
Frequently asked questions about the TS-864eU-4G
What is the QNAP TS-864eU-4G?
It is an eight-bay 2U short-depth rackmount NAS with dual 2.5GbE, HDMI output and PCIe expansion.
Which processor does this model use?
It uses an Intel Celeron N5095 four-core, four-thread processor with burst speed up to 2.9 GHz.
What is the maximum memory capacity?
The stated maximum memory capacity is 16 GB using two 8 GB modules.
How many drive bays are included?
The TS-864eU-4G has eight 3.5-inch SATA bays.
Which drive types are supported?
The listed drive types are 3.5-inch SATA HDDs and 2.5-inch SATA SSDs.
Which network ports are built in?
Two 2.5GbE RJ45 ports are included.
How many PCIe slots are available?
The technical table lists one PCIe Gen 3 x2 slot.
Does the TS-864eU-4G have HDMI?
Yes. It includes one HDMI 1.4b output.
Can this model use QuTS hero?
Yes. Switching from QTS to QuTS hero is stated as supported starting from QTS 5.2.2.
What are its dimensions?
The stated dimensions are 88.6 × 432 × 297.4 mm.
Important information
Optional M.2, 5GbE and 10GbE functions require compatible adapters.
The typical 51.022 W operating figure was tested with drives fully populated.
Confirm drive and adapter compatibility before purchase.
