QNAP™ TS-431+ 4-Bay TurboNAS, ARM Cortex-A15 dual-core 1.4Ghz, 1GB RAM, HW encryption SATA 6Gb, s, 2x GbE LAN, 3 x USB3.0

Build a private cloud-based notebook to share with colleagues and friends with the Notes Station 2.0 and Qnotes mobile app
Organize & manage files and backup tasks in one centralized location
Full NAS encryption by volume-based technology and hardware acceleration
Synchronize files between computers, laptops, and mobile devices
Create a 24/7 surveillance center for your home/small office
Stream your multimedia library via DLNA, AirPlay & Chromcast and play on TV
Transcode videos offline and enjoy smooth video streaming even with restricted network connection
CPU ARM® Cortex®-A15 dual-core 1.4 GHz processor
DRAM 1GB DDR3 RAM
Flash Memory 512MB
Hard Disk Drive 4 x 3.5" or 2.5" SATA 6Gb/s, SATA 3Gb/s hard drive or SSD
NOTE:
1. The system is shipped without HDD/SSD.
2. For the compatibility list, please visit www.qnap.com/compatibility
Hard Disk Tray 4 x Hot-swappable tray
LAN Port 2 x Gigabit RJ-45 Ethernet port
LED Indicators Status, LAN, USB, HDD 1-4
USB 3 x USB 3.0 port (Front: 1; Rear: 2)
Support USB printer, pen drive, and USB UPS etc.
Buttons Power, USB One-Touch-Copy, Reset
Alarm Buzzer System warning
Form Factor Tower
Dimensions 177(H) x 180(W) x 235(D) mm
6.97(H) x 7.09(W) x 9.25(D) inch
Weight Net: 3 kg (6.61 lbs); Gross: 4.3 kg (9.48 lbs)
Power Consumption (W) HDD standby: 11.89W
Typical operation: 26.15W
(with 4 x 2 TB HDDs installed)
Operating Temperature 0-40°C
Humidity 5~95% RH non-condensing, wet bulb: 27°C
Power External Power Adapter, 90W, 100-240V
Secure Design Kensington security slot for theft prevention
Fan 1 x 12cm quiet cooling fan (12V DC)
Certification FCC, CE, BSMI, VCCI, C-TICK