Synology DiskStation DS215+ Form Factor: 2-Bay Port USB: 2 x USB3.0 Port eSATA: 1 x eSATA HDD Interface: 2 x SATA (2 x Bay) Processor: Annapurna AL-212 Dual Core 1.4 GHz Default/ Max. Memory: 1GB Power: Power Supply Unit / Adapter: 72W AC Input Power Voltage: 100V to 240V AC Power Frequency: 50/60 Hz, Single Phase Power Consumption: 20.77 W (Access),8.96 W (HDD Hibernation) Temperature: 5°C - 35 °C