Qnap Tower | TS-673A | (6 Bay)
Enhanced Performance with 673A
The TS-673A is a 6-bay NAS powered by an AMD Ryzen Embedded V1500B 4-core/8-thread 2.2 GHz processor. It features 8GB of DDR4 RAM (expandable to 64GB), two 2.5GbE RJ45 ports, and two PCIe Gen 3 slots for flexible network and storage expansion. The TS-673A also supports M.2 NVMe SSDs for SSD caching and Qtier technology, enabling constant storage optimization.
Key Specifications:
- Processor: AMD Ryzen Embedded V1500B 4-core/8-thread 2.2 GHz
- RAM: 8GB SODIMM DDR4 (expandable to 64GB)
- Storage: 6-bay SATA 6Gbps (supports 3.5″ HDD and 2.5″ SSD)
- Network: 2x 2.5GbE RJ45 ports
- Expansion: 2x PCIe Gen 3 slots (for network and storage expansion)
- SSD Support: M.2 NVMe SSD slots for SSD caching and Qtier technology
- Operating System: QTS and QuTS hero
Specification
Qnap Tower TS-673A
| CPU | AMD Ryzen™ Embedded V1500B 4-core/8-thread 2.2 GHz processor |
| CPU Architecture | 64-bit x86 |
| Graphic Processors | Optional via a PCIe adapter |
| Floating Point Unit | Yes |
| Encryption Engine | Yes(AES-NI) |
| Hardware-accelerated Transcoding | Optional via a PCIe adapter |
| System Memory | 8 GB SODIMM DDR4 (1 x 8 GB) |
| Maximum Memory | 64 GB (2 x 32 GB) |
| Memory Slot | 2 x SODIMM DDR4 Support ECC memory For dual-DIMM configurations, you must use a pair of identical DDR4 modules.
|
| Flash Memory | 5GB (Dual boot OS protection) |
| Drive Bay | 6 x 3.5-inch SATA 6Gb/s, 3Gb/s |
| Drive Compatibility | 3.5-inch SATA hard disk drives 2.5-inch SATA solid state drives |
| Hot-swappable | Yes
The following are not hot-swappable: M.2 SSDs, SSD cache drives, SSDs using PCIe expansion slots.
|
| M.2 Slot | 2 x M.2 2280 PCIe Gen3 x1 slots
The M.2 SSD is not included as standard.
|
| SSD Cache Acceleration Support | Yes |
| GPU pass-through | Yes |
| 2.5 Gigabit Ethernet Port (2.5G/1G/100M) | 2(2.5G/1G/100M) |
| 5 Gigabit Ethernet Port (5G/2.5G/1G/100M) | Optional via a PCIe adapter |
| 10 Gigabit Ethernet Port | Optional via a PCIe adapter |
| Wake on LAN (WOL) | Yes |
| Jumbo Frame | Yes |
| PCIe Slot | 2 Slot 1: PCIe Gen 3 x4 Slot 2: PCIe Gen 3 x4 Card dimensions for PCIe slot 1~Slot 2:200 x 111.15 x 18.76 mm / 7.87 x 4.38 x 0.74 inches.
Wider cards can be installed if the next PCIe slot will not be used. |
| USB 3.2 Gen 2 (10Gbps) Port | 3 x Type-A USB 3.2 Gen 2 10Gbps 1 x Type-C USB 3.2 Gen 1 5Gbps |
| HDMI™ Output | Optional via a PCIe adapter |
| Form Factor | Tower |
| LED Indicators | Status/Power, USB, LAN, Drive 1-6, M.2 SSD 1-2 |
| Buttons | Power, Reset, USB Auto Copy |
| Qnap Tower TS-673A Dimensions (HxWxD) |
180.2 × 264.3 × 279.6 mm
Dimensions do not include foot pad (foot pad may be up to 30mm / 1.18 inches high depending on model)
|
| Weight (Net) | 6.4 kg |
| Weight (Gross) | 7.3 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, 100-240V AC, 50-60Hz, 3.5A |
| Power Consumption: HDD Sleep Mode | 21.891 W |
| Power Consumption: Operating Mode, Typical | 45.898 W
Tested with drives fully populated.
|
| Fan | System fan: 2 x 92mm CPU fan: 1 x 60mm |
| System Warning | Buzzer |
| Kensington Security Slot | Yes |
| Max. Number of Concurrent Connections (CIFS) – with Max. Memory | 2000 |







