Qnap TS-459 Pro II specs

CPU:
Intel Atom 1.8GHz Dual-core Processor

DRAM:
1GB RAM (Expandable RAM, up to 3GB)

Flash Memory:
512MB DOM

HDD:
4 x 3/5” SATA 6Gb/s, SATA 3Gb/s hard drive or 2.5” SATA, SSD hard drive

HDD Tray:
4 x Hot-swappable and lockable tray

LAN Port;
2 x Gigabit RJ-45 Ethernet port

LED Indicators:
Status, LAN, USB, eSATA, Power, HDD 1, HDD 2, HDD 3, HDD 4

USB:
2x USB 3.0 port (Front: 1; Back: 1)
4x USB 2.0 port (Back: 4)
Support USB printer, pen drive, USB hub, and USB UPS etc.

eSATA:
2 x eSATA port (Back)

Buttons:
System: Power button, USB One-Touch-Backup Button, Reset button

LCD panel:
Mono-LCD display with backlight
Enter button, Select button for configuration

Alarm Buzzer:
System warning

Form Factor:
Tower

Dimensions:
177 (H) x 180 (W) x 235 (D) mm
6.97 (H) x 7.09 (W) x 9.25 (D) inch

Weight:
Net weight: 3.65 kg (8.04 lbs)
Gross weight: 4.65 kg (10.24 lbs)

Sound Level (dB):
w/o HDD installed: 34.7 dB
Stand by: 34.1 dB
In operation: 36.8 dB
(with 4 x 500GB HDD installed)

Power Consumption (W):
Sleep mode: 19W
In Operation: 35W
Power-off (in WOL mode): 1W
(with 4 x 500GB HDD installed)

Temperature:
0~40˚C

Humidity:
0~95% R.H.

Power Supply:
Input: 100-240V AC, 50/60Hz, Output: 250W

Secure Design:
K-lock security slot for theft prevention

VGA:
Reserved VGA interface for maintenance

Fan:
1 x quiet cooling fan (9 cm, 12V DC)