| CPU | Intel® Atom™ 1.8GHz Dual-core Processor |
| DRAM | 1GB 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 theQNAP RAM Module Installation Guide |
| Flash Memory | 512MB DOM |
| HDD | 4 x 3/5” SATA 6Gb/s, SATA 3Gb/s hard drive or2.5” SATA, SSD hard drive |
| HDD Tray | 4 x Hot-swappable and lockable tray |
| LANPort | 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 backlightEnter button, Select button for configuration |
| Alarm Buzzer | System warning |
| Form Factor | Tower |
| Dimensions | 177 (H) x 180 (W) x 235 (D) mm6.97 (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 dBStand by: 34.1 dBIn operation: 36.8 dB(with 4 x 500GB HDD installed) |
| Power Consumption (W) | Sleep mode: 19WIn Operation: 35WPower-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) |
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