8-Bay Short-Depth Rackmount NAS
QNAP TS-873AeU-4G Short-Depth Rackmount NAS
An eight-bay 2U short-depth NAS with an AMD Ryzen Embedded V1500B processor, 4 GB DDR4 memory, dual 2.5GbE ports, two M.2 NVMe slots and PCIe expansion.
Compact rackmount storage for space-conscious installations
The QNAP TS-873AeU-4G combines eight SATA bays with a 297.4 mm-deep 2U chassis for compact racks and media cabinets. Dual 2.5GbE, two M.2 NVMe slots and a PCIe Gen 3 x8 slot provide a flexible foundation for shared storage, virtual machines, multi-user access and hybrid-cloud applications.
Key features and benefits
Short-depth 2U design
The 297.4 mm chassis depth can simplify installation where rack depth and cable clearance are limited.
Dual 2.5GbE networking
Two 2.5GbE RJ45 ports provide multi-gigabit connectivity and support port trunking.
M.2 NVMe cache options
Two M.2 2280 PCIe Gen 3 x1 slots support compatible NVMe SSDs for cache acceleration.
PCIe Gen 3 expansion
One PCIe Gen 3 x8 slot supports compatible network, QM2 or Fibre Channel cards.
Hybrid-cloud workflows
Block-based and file-based cloud storage gateways use local caching for lower-latency access to cloud data.
Virtualisation support
The stated feature set includes hosting virtual machines and containers.
Who is this model best for?
A strong choice for
- Short-depth rack installations
- Small-business shared storage
- Virtual machines and containers
- SSD caching with compatible M.2 drives
- Hybrid-cloud storage workflows
Consider another model if you need
- You require redundant power supplies
- You need built-in 10GbE connectivity
- You require more than 4 GB memory installed initially
Key specifications
- Processor
- AMD Ryzen Embedded V1500B, 4-core/8-thread 2.2 GHz
- System memory
- 4 GB SODIMM DDR4 (1 × 4 GB)
- Maximum memory
- 64 GB (2 × 32 GB)
- Drive bays
- 8 × 3.5-inch SATA 6Gb/s, 3Gb/s; supplied without HDDs
- Drive compatibility
- 3.5-inch SATA HDD; 2.5-inch SATA SSD
- M.2 slots
- 2 × M.2 2280 PCIe Gen 3 x1
- Networking
- 2 × 2.5GbE RJ45
- Expansion
- 1 × PCIe Gen 3 x8 slot
- Dimensions
- 88.6 × 432 × 297.4 mm
- Power supply
- 250W, 100–240V
Full technical specifications
Processor, memory and storage
| CPU | AMD Ryzen™ Embedded V1500B 4-core/8-thread 2.2 GHz processor |
|---|---|
| CPU Architecture | 64-bit x86 |
| Floating Point Unit | Supported |
| Encryption Engine | Supported (AES-NI) |
| Hardware-accelerated Transcoding | Optional via a PCIe graphics card |
| System Memory | 4 GB SODIMM DDR4 (1 x 4 GB) |
| Maximum Memory | 64 GB (2 x 32 GB) |
| Memory Slot | 2 x SODIMM DDR4 Support ECC memory For dual-DIMM configuration, you must use a pair of identical DDR4 modules. |
| Flash Memory | 5GB (Dual boot OS protection) |
| Drive Bay | 8 x 3.5-inch SATA 6Gb/s, 3Gb/s The system is shipped without HDD. |
| Drive Compatibility | 3.5-inch SATA hard disk drives 2.5-inch SATA solid state drives |
| Hot-swappable | Supported |
| M.2 Slot | 2 x M2 2280 (PCIe Gen3 x 1) Compatible with NVMe SSD PCIe Gen 3 and above. |
| SSD Cache Acceleration Support | Supported |
| Max. Number of Concurrent Connections (CIFS) - with Max. Memory | 2000 |
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 a network adapter |
| 10 Gigabit Ethernet Port | Optional via a network adapter |
| Wake on LAN (WOL) | Supported Only the 2.5GbE port |
| Jumbo Frame | Supported |
| PCIe Slot | 1 x PCIe Gen3 x8 Card dimensions for PCIe slot:210 x 68.9x 18.76 mm / 8.27 x 2.71 x 0.74 inches. |
| USB 3.2 Gen 2 (10Gbps) Port | 4 (2 x Type A, 2 x Type C) |
| HDMI™ Output | Optional via a PCIe graphics card |
Physical, environmental and power
| Form Factor | 2U Short Depth Rackmount |
|---|---|
| LED Indicators | HDD 1-8, Status, LAN, USB, Power |
| Buttons | Power, Reset |
| Dimensions (HxWxD) | 88.6 × 432 × 297.4 mm Excludes ear hook and the protruding part of the Power Supply Unit. |
| Weight (Net) | 7.97 kg |
| Weight (Gross) | 9.47 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 | 250W PSU, 100 - 240V |
| Power Consumption: HDD Sleep Mode | 26.76 W |
| Power Consumption: Operating Mode, Typical | 52.49 W Tested fully populated with WD10EFRX hard drives. |
| Fan | 3 x 60mm, 12VDC |
| System Warning | Buzzer |
Frequently asked questions about the TS-873AeU-4G
What is the QNAP TS-873AeU-4G?
It is an eight-bay 2U short-depth rackmount NAS with dual 2.5GbE, two M.2 slots and PCIe expansion.
Which processor does this model use?
It uses an AMD Ryzen Embedded V1500B four-core, eight-thread 2.2 GHz processor.
How much memory is included?
The TS-873AeU-4G includes 4 GB SODIMM DDR4 memory.
What is the maximum memory capacity?
The stated maximum is 64 GB using two 32 GB modules.
How many drive bays are provided?
It has eight hot-swappable 3.5-inch SATA bays and is supplied without hard drives.
Which drive types are supported?
The bays support 3.5-inch SATA HDDs and 2.5-inch SATA SSDs.
Which M.2 slots are included?
It includes two M.2 2280 PCIe Gen 3 x1 slots for compatible NVMe SSDs.
Which network ports are built in?
Two 2.5GbE RJ45 ports are included.
Does the TS-873AeU-4G include redundant power?
No redundant power configuration is stated; the specification lists one 250W power supply.
What are its dimensions?
The stated dimensions are 88.6 × 432 × 297.4 mm, excluding the ear hooks and protruding power-supply section.
Important information
The system is supplied without hard drives.
Optional 5GbE, 10GbE, HDMI and hardware-transcoding functions require compatible adapters or graphics cards.
The 52.49 W operating figure was tested fully populated with WD10EFRX hard drives.
Confirm drive, M.2 SSD and expansion-card compatibility before purchase.
