Input Connector: (1) mini-USB type "B" female, 4-pin
Output Connectors: (4) USB type "A" female, 4-pin
Power Supply: 5V DC 2.5A (optional usage)
Power Consumption: 12.5W (max).
Power Output per USB port: 500 mA max. (with optional use 5V DC adapter)
Dimensions: 2.75" W x 0.5" H x 1.5" D