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6-bay Core i5 QuTS hero tower NAS
QNAP TVS-h674-i5-32G 6-Bay Core i5 2.5GbE QuTS hero NAS
The QNAP TVS-h674-i5-32G is a six-bay tower NAS with an Intel® Core i5-12400 processor, 32GB DDR4, dual 2.5GbE, two M.2 PCIe Gen 4 x4 slots, two PCIe Gen 4 slots and HDMI output.

What is it? It is an SMB NAS for file serving, virtualisation, collaborative video workflows, backup and recovery. The supplied QuTS hero content includes ZFS-based data protection, inline data reduction, snapshots, real-time SnapSync and SSD optimisation.
12th Gen Intel® Core processing
The supplied processor, graphics and memory configuration supports demanding storage, media and virtual workloads.
Core i5-12400
The processor has six cores, twelve threads and burst speeds up to 4.4GHz.
Intel® UHD Graphics 730
Integrated graphics, hardware-accelerated transcoding and GPU pass-through are listed.
32GB DDR4 installed
The NAS supports up to 64GB using two SODIMM DDR4 slots.
Six SATA bays with two M.2 PCIe Gen 4 slots
The storage layout combines hot-swappable SATA capacity with optional NVMe cache, storage pools and acceleration.
Six SATA bays
The 3.5-inch bays support compatible 3.5-inch SATA HDDs and 2.5-inch SATA SSDs.
Two M.2 slots
Two M.2 2280 PCIe Gen 4 x4 slots support compatible NVMe SSDs using PCIe Gen 3 and above.
Cache and AI options
SSD cache acceleration and compatible M.2 Edge TPU acceleration are described in the supplied content.
Explore the DeviceDeal NAS Buying Guide
Compare NAS types, storage planning considerations and practical buying factors before selecting a system.
Dual 2.5GbE and two PCIe Gen 4 slots
Built-in multi-gigabit networking and flexible expansion support higher-bandwidth workflows.
Dual 2.5GbE
Two ports support 2.5G, 1G, 100M and 10M, with Port Trunking described in the source.
Optional faster networking
Compatible PCIe cards can add 5GbE or 10GbE; the supplied description also references optional 25GbE.
PCIe expansion
Two PCIe Gen 4 slots support compatible network adapters, QM2 cards and entry-level graphics cards.
Virtualisation, media and ZFS-based protection
The supplied information supports virtual workloads, local display and storage-protection features.
Virtual machines and containers
The source lists VMware Ready, Microsoft Hyper-V, Citrix and Veeam Ready environments.
QuTS hero data services
Inline deduplication, compression, snapshots, SnapSync and SSD optimisation are described.
HDMI output
HDMI 1.4b supports up to 4096 × 2160 at 30Hz for compatible local display use.
QNAP laboratory network-throughput figures
The supplied results were measured on a TVS-h674 with the stated QNAP Labs configuration and may vary by environment.
Dual 25GbE
SMB sequential throughput with a 1M workload reached 3,314MB/s write and 3,231MB/s read.
Single 25GbE
SMB sequential throughput with a 1M workload reached 2,947MB/s write and 2,954MB/s read.
Dual 2.5GbE
SMB sequential throughput with a 1M workload reached 590MB/s write and 591MB/s read.
Frequently asked questions
What is the QNAP TVS-h674-i5-32G?
It is a six-bay QuTS hero tower NAS with an Intel® Core i5-12400 processor, 32GB DDR4 and dual 2.5GbE.
Which processor is installed?
It uses an Intel® Core i5-12400 six-core, twelve-thread processor with burst speeds up to 4.4GHz.
How much memory is included and supported?
It includes 32GB SODIMM DDR4 and supports up to 64GB using two 32GB modules.
Which drives can be installed?
The six 3.5-inch bays support compatible 3.5-inch SATA HDDs and 2.5-inch SATA SSDs.
What do the M.2 slots support?
It has two M.2 2280 PCIe Gen 4 x4 slots for compatible NVMe SSDs using PCIe Gen 3 and above.
Are M.2 SSDs hot-swappable?
No. The supplied specifications state that hot-swapping is not supported for M.2 SSDs.
Does it include 10GbE or 25GbE?
It includes two 2.5GbE ports. The dedicated specification lists optional 5GbE and 10GbE through compatible PCIe cards, while the supplied description also references optional 25GbE.
What can the PCIe slots support?
The supplied information lists compatible network adapters, QM2 cards and entry-level graphics cards.
Can it run virtual machines and containers?
Yes. The source states that it can host multiple virtual machines and containers with optimised resource utilisation.
Does it support direct HDMI output?
Yes. HDMI 1.4b supports resolutions up to 4096 × 2160 at 30Hz.
What supplied network-throughput figures are listed?
QNAP Labs results list up to 3,314MB/s write and 3,231MB/s read over dual 25GbE, 2,947MB/s write and 2,954MB/s read over single 25GbE, and 590MB/s write and 591MB/s read over dual 2.5GbE. Results may vary by configuration and environment.
What warranty applies to the TVS-h674-i5-32G?
The supplied specifications list a three-year QNAP manufacturer warranty. Coverage is subject to QNAPs applicable warranty terms.
(TVS-h674-i5-32G)
Features and highlights
Key product details organised from the supplied QNAP information for TVS-h674-i5-32G.
Core i5-12400
Six cores, twelve threads and burst speeds up to 4.4GHz.
32GB DDR4
Installed memory supports expansion up to 64GB.
Six SATA bays
Compatible 3.5-inch HDDs and 2.5-inch SATA SSDs are supported.
Dual M.2 PCIe Gen 4
Two slots support cache, pools and other compatible NVMe uses.
Dual 2.5GbE
Optional faster networking is available through PCIe expansion.
Two PCIe Gen 4 slots
Compatible network, QM2 and entry-level graphics cards can be added.
Technical specifications
The following specifications are organised from the supplied product information for QNAP TVS-h674-i5-32G.
Product details
| Brand | QNAP |
|---|---|
| Model / SKU | TVS-h674-i5-32G |
| Product type | 6-bay Core i5 QuTS hero tower NAS |
Processor and Memory
| CPU | Intel® Core i5-12400 6-core/12-thread processor, burst up to 4.4GHz |
|---|---|
| CPU Architecture | 64-bit x86 |
| Graphics Processor | Intel® UHD Graphics 730 |
| Encryption Engine | Yes (AES-NI) |
| Hardware-Accelerated Transcoding | Yes |
| System Memory | 32GB SODIMM DDR4 |
| Maximum Memory | 64GB (2 × 32GB) |
| Memory Slots | 2 × SODIMM DDR4 |
Storage
| Drive Bays | 6 × 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 Hot-swapping is not supported for M.2 SSDs. |
| M.2 Slots | 2 × M.2 2280 PCIe Gen 4 x4 slots Compatible with NVMe SSD PCIe Gen 3 and above. Confirm compatibility before purchase. |
| SSD Cache Acceleration | Supported |
| GPU Pass-Through | Yes |
Networking
| 2.5 Gigabit Ethernet | 2 × 2.5GbE ports (2.5G/1G/100M/10M) |
|---|---|
| 5 Gigabit Ethernet | Optional via PCIe expansion card |
| 10 Gigabit Ethernet | Optional via PCIe expansion card |
| Wake on LAN | Yes |
| Jumbo Frame | Yes |
Expansion and Connectivity
| PCIe Slots | 2 slots Slot 1: PCIe Gen 4 x16 Slot 2: PCIe Gen 4 x4 Card dimensions for slots 12: 185 × 111.15 × 18.76mm. Wider cards can be installed if the next PCIe slot is not used. |
|---|---|
| USB 3.2 Gen 2 Ports | 1 × Type-C USB 3.2 Gen 2 10Gbps 2 × Type-A USB 3.2 Gen 2 10Gbps |
| HDMI Output | 1 × HDMI 1.4b, up to 4096 × 2160 at 30Hz |
Physical Specifications
| Form Factor | Tower |
|---|---|
| LED Indicators | HDD 16, status, LAN, USB port and M.2 port |
| LCD Display / Button | Yes |
| Buttons | Power, reset and USB Copy |
| Dimensions (H × W × D) | 180.2 × 264.3 × 279.6mm Dimensions exclude the foot pad, which may be up to 30mm high depending on model. |
| Net Weight | 6.32kg |
| Gross Weight | 7.89kg |
| Kensington Security Slot | Yes |
Power and Cooling
| Power Supply Unit | 250W, 100240V |
|---|---|
| Disk Standby Power Consumption | 39.911W |
| Typical Operating Power Consumption | 79.363W Tested fully populated with WD10EFRX hard drives. |
| Fans | System fan: 2 × 92mm, 12VDC CPU fan: 1 × 60mm, 12VDC |
| System Warning | Buzzer |
Operating Environment
| Operating Temperature | 040°C (32104°F) |
|---|---|
| Storage Temperature | -2070°C (-4158°F) |
| Relative Humidity | 595% RH non-condensing, wet bulb: 27°C (80.6°F) |
Warranty and Connections
| Standard Warranty | 3 years |
|---|---|
| Maximum Concurrent CIFS Connections | 2,500 with maximum memory installed |
| SKU | TVS-h674-i5-32G |
| Model # | TVS-h674 |
| Barcode # | 885022024735 |
| Brand | QNAP |
| Shipping Weight | 5.0000kg |
| Shipping Width | 0.290m |
| Shipping Height | 0.290m |
| Shipping Length | 0.290m |
3-year QNAP manufacturer warranty
The supplied specifications list a 3-year manufacturer warranty for QNAP TVS-h674-i5-32G.
Warranty coverage, eligibility and claim assessment are subject to QNAPs applicable warranty terms. Please retain your DeviceDeal tax invoice as proof of purchase.
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