AC Adapter: Yes Material: Plastic Dimensions: 11.02" x 6.69" x 3.54" Internal Interface: SATA II Fan: Yes Specifications: Chipset ID: VIA VL810 + ASMedia ASM1051 Connectors: Host Connectors: 1 - USB 3.0 B (9 pin; SuperSpeed) Female Drive Connectors: 4 - SATA Data & Power Combo (7+15 pin) Receptacle LED: LED Indicators: 4 - Activity (Red) LED Indicators: 4 - Power (Blue) Fans: 2 - 60 mm Type and Rate: SATA II - 3 Gbps USB 3.0 - 5 Gbit/s Power: Input Voltage: 110 ~ 240 AC Input Current: 2.5 Output Voltage: 12 DC Output Current: 6500mA Center Tip Polarity: Positive Maximum Capacity (per Bay): Tested up to 3.0 TB Features: Accepts up to 4 SATA hard drives simultaneously, in a single docking station Independent power buttons for each hard drive Dual 60mm cooling fa...