Qnap TS 459 Pro II - Discos 4 x 3 TB - 3 GB Ram

CPU Intel® Atom™ 1.8GHz Dual-core Processor
DRAM
3 GB RAM (Expandable RAM, up to 3GB)
NOTE:

The system memory can be increased to 3GB by installing an additional 1GB/2GB SO-DIMM RAM module.
For the information of RAM module installation and compatible NAS models, please refer to the QNAP RAM Module Installation Guide
Flash Memory 512MB DOM
HDD 4 x 3.5” SATA 6Gb/s, SATA 3Gb/s hard drive or 2.5” SATA, SSD hard drive
NOTE:
The system is shipped without HDD.
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 3.2 Gen 1 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)