The TS-651 provides a high performance & high capacity storage solution for SOHO & home, workgroup, and SMB users. Powered by the advanced QTS operating system, the TS-651 performs as an easy-to-use yet powerful NAS for data backup, file synchronization, remote access, home entertainment, and is ideal for users to build a personal cloud to access their data easily.
 
Transcode Full HD videos on-the-fly or offline*
Enjoy the best audio-visual experience with HDMI™ output
Create a personal cloud and stream your multimedia library via DLNA, AirPlay, and Plex
Centralize your file storage, sharing and backup
Run a virtual machine and extend the functionality of the NAS with an integrated virtualization solution
Expand the total raw storage capacity up to 84TB (with maximum 14 hard drives) with the economical QNAP expansion enclosure UX-800P
 
CPU
Intel® Celeron® 2.41GHz dual-core processor (burst up to 2.58GHz)
DRAM
TS-651-4G: 8GB DDR3L RAM
Flash Memory
512MB DOM
Hard Disk Drive
6 x 3.5” or 2.5” SATA 6Gb/s, SATA 3Gb/s hard drive or SSD
NOTE:
1. The system is shipped without HDD.
2. For the HDD compatibility list, please visit https://www.qnap.com/compatibility/
Hard Disk Tray
6 x Hot-swappable tray
LAN Port
2 x Gigabit RJ-45 Ethernet port
LED Indicators
Status, LAN, USB, HDD 1-6
USB
3 x USB 3.2 Gen 1 port (Front: 1, Rear: 2)
2 x USB 2.0 port (Rear: 2)
Support USB printer, pen drive, and USB UPS etc.
HDMI™
1
Buttons
Power/Status, USB One-Touch-Backup, reset
Alarm Buzzer
System warning
IR Receiver
MCE-compatible
Form Factor
Tower
Dimensions
175 (H) x 257 (W) x 235 (D) mm
6.89 (H) x10.12 (W) x 9.25 (D) inch
Weight
Net: 6.18 kg (13.62 lbs)
Gross: 6.9 kg (15.21 lbs)
Power Consumption (W)
HDD standby: 21.08W
S3 sleep: 0.41W
In operation: 39.42W
(with 6 x 1TB HDD installed)
Sound Level*
Sound pressure (LpAm): 21.3 dB(A)
Temperature
0-40˚C
Humidity
5~95% RH non-condensing, wet bulb: 27˚C
Power Supply
Input: 100-240V AC, 50/60Hz, Output: 250W
Secure Design
Kensington security slot for theft prevention
Fan
2 x quiet cooling fan (9 cm, 12V DC)