QNAP · Business models
QNAP TS-473A
The QNAP TS-473A is a 4-bay desktop NAS built around the AMD Ryzen Embedded V1500B processor. Installed memory is 8 GB DDR4 SODIMM, expandable to 64 GB. Networking is 2 x 2.5GbE. It also has 2 x M.2 2280 PCIe Gen 3 x1 for SSD cache or fast storage.
- Drive bays
- 4
- Processor
- AMD Ryzen Embedded V1500B
- Memory
- 8 GB DDR4 SODIMM
- Network
- 2.5GbE
Who it suits
A 4-bay unit suits a small office that wants RAID protection with room to grow. Four drives in RAID 5 give three drives of usable space and survive one drive failure.
QNAP TS-473A specifications
| Processor | AMD Ryzen Embedded V1500B, 4-core/8-thread, 2.2 GHz |
|---|---|
| Memory installed | 8 GB DDR4 SODIMM |
| Maximum memory | 64 GB (2 x 32 GB) |
| Drive bays | 4 x 3.5" SATA 6Gb/s |
| M.2 slots | 2 x M.2 2280 PCIe Gen 3 x1 |
| Network ports | 2 x 2.5GbE |
| USB ports | 3 x USB 3.2 Gen 2 Type-A, 1 x USB 3.2 Gen 1 Type-C |
| Expansion slots | 2 x PCIe Gen 3 x4 |
| HDMI | none |
| Form factor | Desktop |
| Size (H × W × D) | 180.2 x 199.3 x 279.6 mm |
| Weight | 5.54 kg |
| Power consumption | 29.792 W operation / 19.576 W disk standby |
| Power supply | 250 W |
| Warranty | 3 years |
| Versions sold | TS-473A-8G (8 GB) |
Specifications from QNAP's published data, checked October 2026. See the TS-473A on QNAP's website. Confirm details before ordering.
Usable capacity by RAID level
How much space the TS-473A gives with typical drive sizes.
| RAID level | 4 × 4 TB | 4 × 8 TB | 4 × 12 TB | 4 × 16 TB | 4 × 20 TB |
|---|---|---|---|---|---|
| RAID 5 | 12 TB | 24 TB | 36 TB | 48 TB | 60 TB |
| RAID 6 | 8 TB | 16 TB | 24 TB | 32 TB | 40 TB |
| RAID 10 | 8 TB | 16 TB | 24 TB | 32 TB | 40 TB |
Space is shown before formatting; expect about 10% less in use. Larger systems are often split into more than one RAID group.
What we do with it
- Storage
NAS supply and installation
A right-sized Synology, QNAP or Asustor unit with the drives, RAID level and network setup your office needs.
- Backup
Automatic backup setup
Scheduled backups of PCs, servers and shared folders to the NAS, with an off-site copy, so nobody has to remember to do it.
- Versions
Ransomware protection for NAS
Point-in-time snapshots and protected copies that let you roll a folder back to how it was before an attack or a mistake.
- Move
Data migration
We move your files, users and permissions from old servers, external drives or an ageing NAS.
Questions about the TS-473A
How much usable storage does the TS-473A give?
It depends on the drives and the RAID level. With 4 × 8 TB drives in RAID 5 you get about 24 TB before formatting. The capacity table on this page shows other combinations.
Can the memory in the TS-473A be upgraded?
Yes. It ships with 8 GB DDR4 SODIMM and QNAP lists a maximum of 64 GB.
Does the TS-473A have 10GbE?
Not built in. Its ports are 2 x 2.5GbE. It has an expansion slot, which can take a faster network card where QNAP lists one for this model.
What warranty does the TS-473A have?
QNAP lists a hardware warranty of 3 years for this model.
Do you supply the TS-473A with drives and installation?
Yes. We supply it with compatible drives fitted, configured and tested, and can install it at your office. Ask for a quote on this page.
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