Component
TS-473A
TS-673A
TS-873A
Memory slots
2 x SODIMM DDR4
Important
• Use only QNAP memory modules to maintain system
performance and stability. For NAS devices with more
than one memory slot, use QNAP modules with identical
specifications.
• Using unsupported modules may degrade performance,
cause errors, or prevent the operating system from
starting.
Note
This device supports ECC memory modules.
Maximum memory
64 GB (2 x 32 GB)
Flash memory
5 GB (dual-boot OS protection)
Storage
Drive bays
4 x 3.5-inch SATA 6 Gbps
bays
6 x 3.5-inch SATA 6 Gbps
bays
8 x 3.5-inch SATA 6 Gbps
bays
Tip
The drive bays are backward compatible with SATA 3 Gbps
drives.
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
M.2 SSD slots
2 x PCIe Gen 3 x1 NVMe
M.2 SSD form factor
2280
SSD cache acceleration
support
3.5-inch drive bays:1 to 4 3.5-inch drive bays:1 to 6 3.5-inch drive bays:1 to 8
Hot-swapping
The device supports hot-swapping drives except for the following:
M.2 SSDs
Network
2.5 Gigabit Ethernet ports 2 x 2.5 GbE RJ45
Note
The 2.5 Gigabit Ethernet port provides 3 network connection
speeds: 2.5G, 1G, and 100M.
Wake-on-LAN
Yes (2.5 GbE RJ45)
External I/O Ports & Expansion Slots
PCIe slots
2 x PCIe 3.0 x4
TS-x73A User Guide
Product Overview
5
