LINKSYS NAS200 Network Storage Port RJ-45: 1 x 10/100M Port USB: 1 x USB2.0 HDD Interface: 2 x SATA (2 x Bay) LEDs: Power, Ethernet, Disk (Act, Full, 1, 2), USB1, USB2 Power: 12V DC, 5A, Switching, 100-240V AC, 50-60Hz, Power Adapter Provided Standards: IEEE 802.3, IEEE 802.3u Temperature: 5°C to 40°C (41°F to 104°F) Humidity: 10% to 80%, non-condensing