STARTECH 4 Port Compact Black Usb 2.0 ST4202USB, 1 - External Ports: USB B (4 pin), 4 - External Ports: USB Type-A (4 pin) USB 2.0, Ports: 4, Interface: USB 2.0, Industry Standards: USB 2.0, Chipset ID: Genesys Logic - GL850G, Maximum Data Transfer Rate: 480 Mbps, MTBF: 75,537 hours, Material: Plastic, Input Voltage: 100 - 240 AC This TAA compliant 4 Port USB 2.0 Hub connects to one USB 2.0 port on a Mac or PC computer, adding four USB 2.0 ports - allowing you to maximize the number of high speed USB peripherals connected to your computer.