Qnap TS 431XeU 3 Bay Storage

CPU: AnnapurnaLabs Alpine AL 314 32 bit ARM Cortex A15 quad core 1.7GHz processor
CPU Architecture: 32 bit ARM
Floating Point Unit
Encryption Engine
System Memory: 2 GB SODIMM DDR3 (1 x 2 GB)
Maximum Memory: 8 GB (1 x 8 GB)
Memory Slot: 1 x SO-DIMM DDR3
Flash Memory: 512MB (Dual boot OS protection)
Drive Bay: 4 x 3.5 inch SATA 6Gb/s, 3Gb/s
Drive Compatibility: 3.5 inch bays:
3.5 inch SATA hard disk drives
2.5 inch SATA hard disk drives
2.5 inch SATA solid state drives
Hot swappable
SSD Cache Acceleration Support
Gigabit Ethernet Port (RJ45): 2
10 Gigabit Ethernet Port: 1 x 10GbE SFP+ Jumbo Frame
USB 3.2 Gen 1 port: 4
Form Factor: 1U Rackmount
LED Indicators: HDD 1-4, Status, USB, LAN1 3
Buttons Power, Reset
Dimensions (HxWxD): 44 × 439 × 291 mm
Weight (Net): 4.15 kg
Weight (Gross): 5.78 kg
Operating temperature: 0 - 40 °C (32°F - 104°F)
Relative Humidity: 5-95% RH non-condensing, wet bulb: 27?C (80.6?F)
Power Supply Unit: Open-frame 100W, Input: 100V-240V ~ / 3.5A, 50Hz-60Hz
Power Consumption: HDD Sleep Mode 12.42 W
Power Consumption: Operating Mode, Typical 30.99 W
With drives fully populated
Fan System fan: 3 x 40mm, 12VDC
Sound Level: 20.3 db(A)
System Warning: Buzzer
Kensington Security Slot
Max Number of Concurrent Connections (CIFS): 700