QNAP HS-251+-US 2-Bay Fanless Personal Cloud NAS with HDMI output (No HDD) Form Factor: 2-Bay Port RJ-45: 2 x 10/100/1000M Port USB: 2 x USB3.0 + 2 x USB2.0 HDD Interface: 2 x 3.5� or 2.5� SSD or NAS Hard Drives Processor: Intel Celeron 2.41 GHz dual-core processor (burst up to 2.58 GHz) Default/ Max. Memory: 1GB DDR3L RAM Power: Power Consumption (W) HDD standby: 8.96W In operation:15.64W (with 2 x 3TB WD NAS HDD installed) Power Supply: External Power Adapter, 60W, 100-240V Temperature: 0°C - 40 °C