QNAP · Business models
QNAP TVS-h674T
The QNAP TVS-h674T is a 6-bay desktop NAS built around the Intel Core i5-12400 processor. Installed memory is 32 GB DDR4 SODIMM, expandable to 64 GB. Networking is 2 x 2.5GbE. It also has 2 x M.2 2280 PCIe Gen 4 x4 for SSD cache or fast storage.
- Drive bays
- 6
- Processor
- Intel Core i5-12400
- Memory
- 32 GB DDR4 SODIMM
- Network
- 2.5GbE
Who it suits
Five or six bays give more usable space in RAID 5, or allow RAID 6, which survives two drive failures. A good fit for 10 to 50 users.
QNAP TVS-h674T specifications
| Processor | Intel Core i5-12400, 6-core/12-thread, burst up to 4.4 GHz |
|---|---|
| Memory installed | 32 GB DDR4 SODIMM |
| Maximum memory | 64 GB (2 x 32 GB) |
| Drive bays | 6 x 3.5" SATA 6Gb/s |
| M.2 slots | 2 x M.2 2280 PCIe Gen 4 x4 |
| Network ports | 2 x 2.5GbE |
| USB ports | 1 x USB 3.2 Gen 2 Type-C, 2 x USB 3.2 Gen 2 Type-A, 2 x Thunderbolt 4 |
| Expansion slots | 1 x PCIe Gen 4 x16, 1 x PCIe Gen 4 x4 (holds the Thunderbolt 4 card) |
| HDMI | 1 x HDMI 1.4b (4K 30Hz) |
| Form factor | Desktop |
| Size (H × W × D) | 180.2 x 264.3 x 279.6 mm |
| Weight | 6.36 kg |
| Power consumption | 79.363 W operation / 39.911 W disk standby |
| Power supply | 250 W |
| Warranty | 3 years |
| Versions sold | TVS-h674T-i5-32G (32 GB) |
Specifications from QNAP's published data, checked October 2026. See the TVS-h674T on QNAP's website. Confirm details before ordering.
Usable capacity by RAID level
How much space the TVS-h674T gives with typical drive sizes.
| RAID level | 6 × 4 TB | 6 × 8 TB | 6 × 12 TB | 6 × 16 TB | 6 × 20 TB |
|---|---|---|---|---|---|
| RAID 5 | 20 TB | 40 TB | 60 TB | 80 TB | 100 TB |
| RAID 6 | 16 TB | 32 TB | 48 TB | 64 TB | 80 TB |
| RAID 10 | 12 TB | 24 TB | 36 TB | 48 TB | 60 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 TVS-h674T
How much usable storage does the TVS-h674T give?
It depends on the drives and the RAID level. With 6 × 8 TB drives in RAID 5 you get about 40 TB before formatting. The capacity table on this page shows other combinations.
Can the memory in the TVS-h674T be upgraded?
Yes. It ships with 32 GB DDR4 SODIMM and QNAP lists a maximum of 64 GB.
Does the TVS-h674T 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 TVS-h674T have?
QNAP lists a hardware warranty of 3 years for this model.
Do you supply the TVS-h674T 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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