Cross-over sharing switch is the ideal solution for sharing 4 USB devices such as printer, scanner, external memorry, etc.. with up to 2 PCs. Either USB device can be accessed from either PC. It works with Windows, Mac, or Linux. Connector: Upstream -- USB B type, Downstream -- USB A Type Fullycompliant with USB1.1 and 2.0 Supporthotswapping for all USB devices Package contents USB2.0 sharing switch Power adapter 2 x 5Ft USB A/B cables