QNAP Network Attachment Storage TS-453U-US 4Bay 1U Celeron Quad Core 2.0GHz 4GB DDR3 SATA 4xGbE

Processor
Quad-core Intel Celeron 2.0GHz (up to 2.41GHz)
Memory
Installed: 4GB DDR3L SDRAM (1 x 4GB)
Slots: 2 SODIMM (Max: 8GB)
Flash memory
512MB
Internal 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.
Drive tray
4 Hot-swappable and lockable trays
Network interface
4 RJ45 Gigabit Ethernet ports
Ports
5 USB 3.0 (front: 1, rear: 4)
1 HDMI
1 console (system maintenance)
LED indicators
Status, LAN, USB, HDD 1, HDD 2, HDD3, HDD4
Buttons
Power, USB One-Touch-Copy, reset
Alarm buzzer
System warning
Form factor
1U, rack mountable
Power consumption (W)
HDD standby: 23.54W
In operation: 39.86W
(with 4 x 2TB HDD installed)
Power supply
Input: 100-240V AC, 50/60Hz Output: Redundant 250W
Fan
2 x 40mm, 12V DC
Item Dimension (L"xW"xH"):
1.73 x 16.97 x 19.02
Weight:
18.94 lb
Warranty Information:
2 years