CPU	AnnapurnaLabs, an Amazon company Alpine AL314, 4-core, 1.7GHz
CPU Architecture	32-bit ARM
Floating Point Unit
Encryption Engine
System Memory	4 GB SODIMM DDR3 (1 x 4 GB)
Maximum Memory	8 GB (1 x 8 GB)
Memory Slot	1 x SO-DIMM DDR3
Flash Memory	512 MB (Dual boot OS protection)
Drive Bay	4x 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)	1
2.5 Gigabit Ethernet Port (2.5G/1G/100M)	1
10 Gigabit Ethernet Port	1 x 10GbE SFP+
Wake on LAN (WOL)	Only the 1GbE port
Jumbo Frame
USB 3.2 Gen 1 port	3
Form Factor	Tower
LED Indicators	Power, Status, LAN, USB, HDD1-4
Buttons	Power, Reset, USB Auto Copy
Dimensions (HxWxD)	169 × 160 × 219 mm
Weight (Net)	2.01 kg
Weight (Gross)	3.47 kg
Operating temperature	0 - 40 °C (32°F - 104°F)
Storage Temperature	-20 - 70°C (-4°F - 158°F)
Relative Humidity	5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply Unit	90W Adapter, 100-240V
Fan	1 x 120mm, 12VDC
System Warning	Buzzer
Kensington Security Slot
Max. Number of Concurrent Connections (CIFS) - with Max. Memory	400

QNAP TS-431X3-4G 4 Bay AnnapurnaLabs AL-314 quad-core 1.7GHz processor, 4 GB RAM 4x 3.5-inch SATA Hot-swappable 1 x 10GbE SFP+ port 3 xUSB 3.2 Tower