Requirement: Windows 2000/ xp /server 2003 ExpressCard enabled system w/ available ExpressCard slot Features: Compliant with PCI Express base specification 1.0a Supprots asynchronous and isochronous data transfer modes Hot-swapping feature allows (dis)connecting devices without powering down system Supports data transfer speeds up to 400Mbps Os support windows 2000/xp/server 2003