SERVEUR NAS QNAP TS-431U

* CPU Freescale™ ARM® Cortex®-A9 dual-core 1.2GHz processor with hardware encryption engine * Floating Point Unit : ✔ * Hardware Encryption Engine : ✔ * 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 / * Hard Disk Tray : 4 Hot-swappable and lockable trays * LAN Port : 2 Gigabit RJ-45 Ethernet ports with porting trunking support * LED Indicators Status, LAN, USB, HDD 1-4 USB 4 x USB 3.2 Gen 1 ports (rear) 1 x USB 2.0 port (front) Support USB printer, pen drive, and USB UPS etc. Buttons Power, USB One-Touch-Copy, Reset Alarm Buzzer System warning Form Factor 1U, rack mountable Dimensions 44 (H) x 439 (W) x 499 (D) mm 1.73 (H) x 17.28 (W) x 19.65 (D) inch Weight Net weight: 7.38 kg (16.27 lbs) Gross weight: 9.26 kg (20.41 lbs) Power Consumption (W) HDD standby: 19.3W Typical operation: 34.9W (with 4 x 2 TB HDDs installed) Sound Level* Sound pressure (LpAm) :35.3 dB(A) Operating Temperature 0 - 40˚C, 5~95% RH non-condensing, wet bulb: 27˚C Power Supply Input: 100-240V AC, 50/60Hz; Output: 250W Fan 2 x 4cm cooling fan (12V DC)