• Dual 2.5GbE as standard: Accelerate data transfer and backup speeds by enabling Port Trunking or SMB Multichannel
• DDR5 RAM: Built-in high-performance and low power consumption DDR5 RAM supports In-Band ECC (IBECC) for data reliability. Up to 16GB RAM can be installed
• Flexible E1.S slots: E1.S NVMe PCIe slots provide flexible configuration of SSD caching, ensuring the NAS is never limited in its specifications
• Secure Snapshot Protection: Snapshots record the complete system state and data, allowing you to quickly restore the system to a normal state in the event of unexpected incidents
• PCIe Gen 3 slot: Supports 5/10GbE NIC or QM2 expansion cards, offering flexible upgrades for high-speed networking and enhanced application performance
• Long-term supply: TS-h665U-RP will be available and supported by QNAP for an extended period, up to 2031

TS-h665U-RP
Intel® quad-core 1U rackmount NAS with dual E1.S slots, dual 2.5GbE ports, and PCIe expansion — delivering high-speed performance and versatile scalability

TS-h665U-RP is designed for small and medium-sized businesses, powered by an Intel® quad-core processor, and equipped with dual 2.5GbE network ports that support port trunking for up to 5 Gbps network bandwidth. A PCIe expansion slot allows flexible upgrades, such as adding a 10GbE/5GbE network card or a QM2 card for M.2 SSD caching, delivering exceptional expandability. With the built-in Intel® AES-NI encryption engine, TS-h665U-RP maintains outstanding data access performance even when accelerating AES 256-bit encryption.
Within a 1U chassis, TS-h665U-RP offers four 3.5-inch SATA bays and two high-expandability E1.S slots, delivering a powerful and efficient multitasking NAS solution. TS-h665U-RP comes with the QuTS operating system preinstalled, offering ZFS data integrity and immutability to protect against data tampering.
TS-h665U-RP is equipped with dual power supplies for superior redundancy, ensuring uninterrupted 24/7 operation of critical services.

• Quick Start Guide
• leaflet
• NAS Repair Manual