Qnap TS-419U specs

CPU - Marvell 6281 1.2GHz

DRAM - 512MB DDRII RAM

Flash Memory - 16MB

HDD - 4 x 3.5" or 2.5” SATA I/II HDD

HDD Tray - 4 x hot-swappable and lockable tray

LAN Port - 2 x Gigabit RJ-45 Ethernet port

LED Indicators - USB, Status, HDD 1, HDD 2, HDD 3, HDD 4, LAN

USB - 4 x USB 2.0 port (Front: 1; Back: 3), Supports USB printer, disk, 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

Alarm Buzzer - System warning

Form Factor - Rackmount

Dimensions - 44(H) x 439(W) x 483(D) mm, 1.73(H) x 16.97(W) x 19.02(D) inch

Weight - Net weight: 6.7 Kg (14.77 lbs), Gross weight: 11.06 Kg (24.38 lbs)

Sound Level (dB) - W/o HDD installed: 33 dB, Stand by: 33.2 dB, In operation: 35.1dB, (Background: 25.5 dB)

Power Consumption (W) - Sleep mode: 15W, In operation: 29W (with 4 x 500GB HDD installed)

Temperature - 0~40˚C/ 32~104°F

Humidity - 0~95% R.H.

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

Fan - 3 x quiet cooling fan (4 cm, 12V DC)