Qnap 4 Bay NAS Storage TS-431P

CPU: AnnapurnaLabs, an Amazon company Alpine AL-212, 2-core, 1.7GHz
System Memory: 1GB DDR3 RAM
Flash Memory: 512MB NAND flash
Hard Drive Tray 4
Drive Interface SATA 3.5″/2.5″ 6Gb/s HDD/SSD ; Hot-swappable
USB: 3 x USB 3.0 port (Front x1; Rear x 2)
LAN Port: 2 x GbE RJ45
LED Indicators System Status, HDD, USB, LAN
Buttons Power, Reset, USB One-Touch-Copy
System Warning: Buzzer
Form Factor: Tower
Dimensions (H) x (W) x (D): 169 x 160 x 219 mm
6.65 x 6.3 x 8.62 inch
Weight Net: 3 kg (6.61 lbs); Gross: 4.3 kg (9.48 lbs)
Operating Temperature: 0 – 40˚C / 32~104°F
Relative Humidity: 5~95% non-condensing, wet bulb: 27˚C
Power Supply: AC adapter, 90W, 100 – 240V
Power Consumption: HDD standby: 11.65W
In operation: 26.7W
(with 4 x 1TB HDD installed)
Sound Level* Operating low speed: 19.5 dB(A)
Security Design Kensington security slot
Fan: 1 x 12 cm smart fan (12V DC)