QNAP TS-h665U-RP-8G
The QNAP TS-h665U-RP-8G is an Intel(R) quad-core 1U rackmount NAS for small and medium-sized businesses. It combines four 3.5-inch SATA bays, two rear E1.S/M.2 NVMe slots, dual 2.5GbE connectivity, PCIe expansion, 8GB DDR5 memory and dual 300W power supplies.
What is the QNAP TS-h665U-RP-8G?
The TS-h665U-RP-8G is a compact 1U NAS designed for business storage, backup and multitasking workloads. It comes with QuTS hero preinstalled, using ZFS data integrity and immutability features to help protect stored data against tampering.
Compact 1U Storage with Flexible Drive Configuration
Combines SATA capacity with rear NVMe expansion in a rackmount chassis.
The TS-h665U-RP provides four front 3.5-inch drive bays that support 3.5-inch SATA hard drives and 2.5-inch SATA solid state drives. Two rear E1.S/M.2 NVMe Gen 3 x1 slots support E1.S NVMe SSDs and M.2 NVMe SSDs.
M.2 NVMe SSD support in the rear slots requires the optional QDA-E1SM2 adapter. SSD cache acceleration is supported, allowing the NVMe slots to be configured for caching according to storage requirements.
Networking, Memory and Expansion
Built-in connectivity and an expansion slot provide a flexible upgrade path.
Dual 2.5GbE Ports
Two 2.5GbE ports support Port Trunking for up to 5Gbps aggregate network bandwidth, or SMB Multichannel for accelerated data transfer and backup workflows.
DDR5 Memory
Includes 8GB SODIMM DDR5 memory and supports expansion to 16GB using one 16GB module. In-Band ECC support helps enhance data reliability.
PCIe Gen 3 Expansion
One PCIe Gen 3 x2 slot supports compatible 5GbE or 10GbE network adapters and QM2 expansion cards for networking or M.2 SSD caching upgrades.
Data Protection and Secure Performance
Hardware acceleration and snapshot capabilities support business data protection.
AES-NI Encryption Engine
Hardware-accelerated AES 256-bit encryption helps secure sensitive data while maintaining data access performance.
Secure Snapshot Protection
Snapshots record the system state and data, helping users restore the system to an earlier state following an unexpected incident.
QuTS hero with ZFS
QuTS hero is preinstalled and provides ZFS-based data integrity and immutability features for protection against data tampering.
Redundant Power and Long-Term Availability
Designed to support continuous business services and extended deployment planning.
Dual 300W power supplies provide power redundancy for critical services and 24/7 operation. The supplied product information also states that the TS-h665U-RP will remain available and supported by QNAP for an extended period, up to 2031.
2026 MSP Today Product of the Year Award
The supplied product information states that the QuTS hero operating system was honoured with the 2026 MSP Today Product of the Year Award.
Frequently Asked Questions
Quick answers about the QNAP TS-h665U-RP-8G.
How many drive bays does the TS-h665U-RP-8G have?
It has four front 3.5-inch SATA bays and two rear E1.S/M.2 NVMe Gen 3 x1 slots.
Which drives are supported?
The front bays support 3.5-inch SATA hard drives and 2.5-inch SATA solid state drives. The rear slots support E1.S NVMe SSDs and M.2 NVMe SSDs, with M.2 support requiring the optional QDA-E1SM2 adapter.
How much memory is installed?
This model includes 8GB SODIMM DDR5 memory and can be upgraded to 16GB using one 16GB module.
Does it support 10GbE networking?
10GbE is optional through a compatible network adapter installed in the PCIe expansion slot.
Does the TS-h665U-RP-8G have redundant power?
Yes. It includes two 300W power supply units for power redundancy.
Which operating system is preinstalled?
QuTS hero is preinstalled, providing ZFS data integrity and immutability features.
What is the standard warranty?
The supplied datasheet lists a three-year standard warranty.
Memory installation note: Use QNAP memory modules to maintain system performance and stability. Refer to the hardware user manual before installing or replacing memory. 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.