QNAP Storage Expansion Enclosure UX-800P 8 x Hot-swappable tray with key lock without HDD Form Factor: 8-Bay Port USB: 1 x USB3.0 Port eSATA: USB 3.0 HDD Interface: 8 x 3.5� or 2.5� SATA 6Gb/s, SATA 3Gb/s hard drive LEDs: Power, Link, Status Power: Input: 100-240V AC, 50/60Hz, Output: 350W Temperature: 5°C - 35 °C Humidity: 5~95% RH non-condensing, wet bulb: 27°C.