QNAP TS-H665U Storage server Rack (1U) 8 GB DDR5 0 TB QNAP QTS Black

• 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 will be available and supported by QNAP for an extended period, up to 2031

TS-h665U
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 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 maintains outstanding data access performance even when accelerating AES 256-bit encryption.
Within a 1U chassis, TS-h665U offers four 3.5-inch SATA bays and two high-expandability E1.S slots, delivering a powerful and efficient multitasking NAS solution. TS-h665U comes with the QuTS operating system preinstalled, offering ZFS data integrity and immutability to protect against data tampering

Storage
Storage drives installed	No
Total installed storage capacity	0 TB
Number of storage drives supported	4
Installed storage drive type	No
Supported storage drive types	SSD
Storage drive capacity	0 GB
Supported storage drive interfaces	Serial ATA III, M.2
Storage drive sizes supported	3.5,E1.S,M.2
RAID support	Yes
RAID levels	0, 1, 5, 6, 10, 50, JBOD
Online RAID migration	Yes
Online RAID expansion	Yes
RAID rebuild	Yes
Hot-swap drive bays	Yes
Supported file systems	ext4, ext3, HFS+, FAT32, exFAT
Bad block scan	Yes
Auto-rebuild	Yes
Disk roaming	Yes

Processor
Processor manufacturer	Intel
Processor cores	4

Memory
Internal memory	8 GB
Internal memory type	DDR5
Maximum RAM supported	16 GB
Memory form factor	SO-DIMM
Memory slots	1
Flash memory	4000 MB

Network
Ethernet LAN	Yes
Ethernet LAN data rates	2500,1000,100,10 Mbit/s
DHCP server	Yes
Jumbo frames support	Yes
Wake-on-LAN ready	Yes

Ports & interfaces
Ethernet LAN (RJ-45) ports	2
USB port	Yes
USB 2.0 ports quantity	3
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	1

Design
Chassis type	Rack (1U)
Cooling type	Active
Product colour	Black
LED indicators	Yes

Performance
Type	Storage server
Device class	Home & Home Office
Backup function	Yes
Buzzer	Yes
Disk scan	Yes
Reset button	Yes
S.M.A.R.T. support	Yes
On/off switch	Yes

Software
Operating system installed	QNAP QTS
Operating system version	5.2.9

Power
Power supply location	Built-in
Power supply unit (PSU) capacity	250 W
Number of power supply units	1
AC input voltage	100 - 240 V

Weight & dimensions
Width	430 mm
Depth	374.9 mm
Height	43.3 mm
Package width	550 mm
Package depth	170 mm
Package height	582 mm
Package weight	6.94 kg

Operational conditions
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 95%
Storage relative humidity (H-H)	5 - 95%
Storage temperature (T-T)	-20 - 70 °C

• Quick Start Guide
• NAS Repair Manual
• leaflet