SKU: TS-h665U-8G
The QNAP TS-h665U-8G is a 1U rackmount NAS for small and medium-sized businesses, combining an Intel® quad-core processor, 8GB DDR5 memory, four 3.5-inch SATA drive bays, two E1.S/M.2 NVMe slots, dual 2.5GbE ports and PCIe expansion.
The TS-h665U-8G is a compact 1U NAS with four front SATA bays and two rear E1.S/M.2 NVMe slots. It includes dual 2.5GbE connectivity, a PCIe Gen 3 x2 expansion slot and QuTS hero, providing ZFS-based data integrity and immutability features.
Combines SATA storage capacity with two rear E1.S/M.2 NVMe slots.
Within its 1U rackmount chassis, the TS-h665U provides four 3.5-inch SATA drive bays and two E1.S/M.2 NVMe slots. The NVMe slots can be used for SSD caching to reduce latency and improve random read/write efficiency for small files.
An E1.S PCIe NVMe SSD storage pool can also be used as the QuTS hero system drive to support system performance, application metadata management and database operations.
With the optional QDA-E1SM2 adapter, the E1.S/M.2 slots support M.2 NVMe SSDs and provide a hot-swappable solution. The optional HS-M2SSD-07 or TPAD-M2SSD-04 thermal kit is recommended in the supplied information for M.2 PCIe NVMe SSD cooling.
Built-in 2.5GbE connectivity with options for higher-speed networking and application expansion.
Two 2.5GbE ports support Port Trunking for increased bandwidth and fault tolerance, as well as SMB Multichannel for accelerated data transfer and backup.
The PCIe expansion slot supports compatible 5GbE or 10GbE network interface cards, including up to two-port 10GbE network modules.
The PCIe Gen 3 x2 slot supports compatible QM2, USB expansion and storage expansion cards for broader deployment requirements.
Designed to support responsive multitasking while protecting stored data.
The TS-h665U-8G includes 8GB SODIMM DDR5 memory and supports expansion to 16GB using one 16GB module.
The supplied information states that the DDR5 non-ECC memory supports In-Band ECC to enhance data reliability.
The built-in Intel® AES-NI engine provides hardware-accelerated AES 256-bit encryption while maintaining data access performance.
ZFS-based protection features help maintain data integrity and support recovery.
The TS-h665U comes with QuTS hero preinstalled. QuTS hero provides ZFS data integrity and immutability features designed to protect data against tampering.
Snapshots record the complete system state and data, allowing the system to be restored to a normal state following an unexpected incident.
Extended supply and support planning for business deployments.
The supplied product information states that the TS-h665U will be available and supported by QNAP for an extended period, up to 2031.
QuTS hero was honoured with the 2026 MSP Today Product of the Year Award.
Quick answers about the QNAP TS-h665U-8G.
It has four front 3.5-inch SATA drive bays and two rear E1.S/M.2 NVMe Gen 3 x1 slots.
The TS-h665U-8G includes 8GB SODIMM DDR5 memory and supports a maximum of 16GB.
It includes two 2.5GbE ports supporting 2.5G, 1G, 100M and 10M speeds.
Yes. A compatible 5GbE or 10GbE network adapter can be installed through the PCIe Gen 3 x2 expansion slot.
Yes. The E1.S/M.2 slots support M.2 NVMe SSDs when used with the optional QDA-E1SM2 adapter.
The supplied product information states that QuTS hero is preinstalled.
The supplied datasheet lists a three-year standard warranty.
Memory note: Use only QNAP memory modules to maintain system performance and stability. Unsupported modules may degrade performance, cause errors or prevent the operating system from starting.
Product images are for illustrative purposes only. Designs and specifications are subject to change without notice.
(TS-h665U-8G)
Review the processor, memory, storage, networking, expansion, physical and environmental specifications.
| Specification | Details |
|---|---|
| Processor and Memory | |
| CPU | Intel 4-core processor |
| CPU Architecture | 64-bit x86 |
| Encryption Engine | Yes (AES-NI) |
| Hardware-Accelerated Transcoding | Yes |
| System Memory | 8GB SODIMM DDR5 |
| Maximum Memory | 16GB (1 x 16GB) |
| Memory Slot | 1 x SODIMM DDR5 |
| Storage | |
| Drive Bays | Front: 4 x 3.5-inch Rear: 2 x E1.S/M.2 NVMe Gen 3 x1 slots |
| Drive Compatibility | 3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA solid state drives E1.S/M.2 slots: E1.S NVMe SSD M.2 NVMe SSD With the QDA-E1SM2 adapter (optional purchase), the slots support M.2 NVMe SSDs. |
| Hot-Swappable | Yes |
| M.2 Slot | Optional via a PCIe adapter |
| SSD Cache Acceleration Support | Yes |
| Networking | |
| 2.5 Gigabit Ethernet | 2 x 2.5GbE ports (2.5G/1G/100M/10M) |
| 5 Gigabit Ethernet | Optional via network adaptor |
| 10 Gigabit Ethernet | Optional via network adaptor or PCIe expansion card |
| Wake on LAN | Yes |
| Jumbo Frame | Yes |
| Expansion and Connectivity | |
| PCIe Slot | 1 x PCIe Gen 3 x2 Slot 1: PCIe Gen 3 x2 |
| USB 2.0 Ports | 3 |
| USB 3.2 Gen 2 Port | 1 x Type-A USB 3.2 Gen 2 (10Gbps) |
| Physical Specifications | |
| Form Factor | 1U rackmount |
| LED Indicators | HDD 1–4, E1.S/M.2 1–2, Status, LAN, Expansion, Power |
| Buttons | Power, Reset |
| Power and System Alerts | |
| Power Supply Unit | 250W, 100–240V |
| System Warning | Buzzer |
| Operating Environment | |
| Operating Temperature | 0–40°C (32–104°F) |
| Storage Temperature | -20–70°C (-4–158°F) |
| Relative Humidity | 5–95% RH non-condensing, wet bulb: 27°C (80.6°F) |
| Warranty and Connections | |
| Standard Warranty | 3 years |
| Maximum Concurrent CIFS Connections | 1500 with maximum memory installed |
Memory note: Use only QNAP memory modules to maintain system performance and stability. Unsupported modules may degrade performance, cause errors or prevent the operating system from starting.
QNAP reserves the right to replace parts or accessories when the original is no longer available, subject to compatibility and stability verification. Product images are illustrative, and designs and specifications are subject to change without notice.
| SKU | TS-h665U-8G |
| Model # | TS-h1077AFU |
| Brand | QNAP |
| Shipping Weight | 13.4700kg |
Maunfacturer Warranty: 3 Years Maunfacturer Warranty
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