AMP 2-Port SuperSpeed USB 3.0 Express Card Controller Two Super Speed USB 3.0 Ports; Supports USB 3.0/2.0/1.1 Express Card Host interface for Laptop Computers Additional power jack to support power hungry peripherals Supports 4.8Gbits/sec bandwidth Dimensions: 4.5 x 1.7 x 0.7 inches (114 x 42 x 19 mm)