4-Bay Short-Depth 10GbE Rackmount NAS
QNAP TS-431XeU-8G Short-Depth Rackmount NAS
A four-bay 1U short-depth NAS with an AnnapurnaLabs Alpine AL314 quad-core processor, one 10GbE SFP+ port, two Gigabit Ethernet ports and four USB 3.2 Gen 1 ports.
Short-depth storage for compact 10GbE rack deployments
The QNAP TS-431XeU-8G combines a 291 mm short-depth 1U chassis with four SATA bays and built-in 10GbE SFP+ connectivity. Backup, restoration, private-cloud file management, SSD caching, VJBOD, Container Station, VPN services and Qsirch support growing organisations that need capable storage in a space-conscious rack installation.
Key features and benefits
Short-depth 1U chassis
The 291 mm depth suits compact racks and environments where cabling limits available space.
Built-in 10GbE SFP+
A dedicated 10GbE SFP+ port supports higher-bandwidth storage access alongside two Gigabit RJ45 ports.
Backup and private cloud
Centralised file management, backup, restoration and private-cloud access bring core storage tasks into one system.
VJBOD storage expansion
VJBOD can use this NAS to expand the storage capacity of another supported QNAP NAS.
Container and IoT applications
Container Station supports containerised services and Internet of Things application development.
Search and secure access
Qsirch full-text search and the stated VPN Server and VPN Client features assist file discovery and remote connectivity.
Who is this model best for?
A strong choice for
- Compact 1U rack installations
- Four-bay business backup and file storage
- Sites adopting 10GbE SFP+ networking
- Private-cloud file organisation
- Containerised and IoT application services
Consider another model if you need
- You require a 64-bit processor platform
- You need more than four internal drive bays
- You require more than one 10GbE port
Key specifications
- Processor
- AnnapurnaLabs Alpine AL314 32-bit ARM Cortex-A15, 4-core 1.7 GHz
- Maximum memory
- 8 GB (1 × 8 GB)
- Memory slot
- 1 × SODIMM DDR3
- Drive bays
- 4 × 3.5-inch SATA 6Gb/s, 3Gb/s
- Drive compatibility
- 3.5-inch SATA HDD; 2.5-inch SATA HDD; 2.5-inch SATA SSD
- Networking
- 1 × 10GbE SFP+; 2 × Gigabit RJ45
- USB
- 4 × USB 3.2 Gen 1
- Form factor
- 1U short-depth rackmount
- Dimensions
- 43.3 × 430 × 291 mm
- Power supply
- Open-frame 100W, 100–240V
Full technical specifications
Processor, memory and storage
| CPU | AnnapurnaLabs Alpine AL314 32-bit ARM® Cortex-A15 4-core 1.7GHz processor |
|---|---|
| CPU Architecture | 32-bit ARM |
| Floating Point Unit | Supported |
| Encryption Engine | Supported |
| Maximum Memory | 8 GB (1 x 8 GB) |
| Memory Slot | 1 x SODIMM DDR3 |
| Flash Memory | 512MB (Dual boot OS protection) |
| Drive Bay | 4 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 hard disk drives 2.5-inch SATA solid state drives |
| Hot-swappable | Supported |
| SSD Cache Acceleration Support | Supported |
| Max. Number of Concurrent Connections (CIFS) - with Max. Memory | 400 |
Network, ports and expansion
| Gigabit Ethernet Port (RJ45) | 2 |
|---|---|
| 10 Gigabit Ethernet Port | 1 x 10GbE SFP+ |
| Wake on LAN (WOL) | Supported |
| Jumbo Frame | Supported |
| USB 3.2 Gen 1 port | 4 |
Physical, environmental and power
| Form Factor | 1U Short Depth Rackmount |
|---|---|
| LED Indicators | HDD 1-4, Status, USB, LAN1-3 |
| Buttons | Power, Reset |
| Dimensions (HxWxD) | 43.3 × 430 × 291 mm Excludes ear hook and the protruding part of the Power Supply Unit. |
| Weight (Net) | 5 kg |
| Weight (Gross) | 5.9 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 | Open-frame 100W, Input: 100V-240V ~ / 3.5A, 50Hz-60Hz |
| Power Consumption: HDD Sleep Mode | 12.42 W |
| Power Consumption: Operating Mode, Typical | 30.99 W Tested with drives fully populated. |
| Fan | System fan: 3 x 40mm, 12VDC |
| System Warning | Buzzer |
| Kensington Security Slot | Supported |
Frequently asked questions about the TS-431XeU-8G
What is the QNAP TS-431XeU-8G?
It is a four-bay 1U short-depth rackmount NAS with an Alpine AL314 processor, one 10GbE SFP+ port and two Gigabit Ethernet ports.
Which processor does the TS-431XeU-8G use?
The TS-431XeU-8G uses an AnnapurnaLabs Alpine AL314 32-bit ARM Cortex-A15 four-core 1.7 GHz processor.
What is the stated maximum memory capacity of the TS-431XeU-8G?
The stated maximum memory capacity is 8 GB using one 8 GB SODIMM DDR3 module.
How many drive bays does the TS-431XeU-8G have?
It has four 3.5-inch SATA 6Gb/s, 3Gb/s drive bays.
Which drive types are supported by the TS-431XeU-8G?
It supports 3.5-inch SATA HDDs, 2.5-inch SATA HDDs and 2.5-inch SATA SSDs.
Which network ports are built into the TS-431XeU-8G?
It includes one 10GbE SFP+ port and two Gigabit Ethernet RJ45 ports.
What expansion options does the TS-431XeU-8G provide?
It supports storage expansion up to 24 drives by connecting up to two UX-1200U-RP or UX-800U-RP expansion enclosures.
What form factor is the TS-431XeU-8G?
It is a 1U short-depth rackmount NAS with a stated depth of 291 mm.
What are the dimensions of the TS-431XeU-8G?
Its stated dimensions are 43.3 × 430 × 291 mm, excluding the ear hooks and protruding power-supply section.
Does the TS-431XeU-8G support SSD caching?
Yes. SSD cache acceleration support is listed in the technical specifications.
Important information
This NAS is supplied without drives.
The stated 30.99 W operating figure was tested with drives fully populated.
An optional short rail kit is required for the stated 19-inch ANSI/EIA-RS-310-D rack installation.
