HS USB 2PT EXPCD ROHS 2.0 EXPCARD/34 ADPT SIIG's long-term business vision, comprehensive product line, effective marketing strategy and exceptional customer support have made SIIG the leading brand for computer add-on products. High-quality control standards are evident by one of the lowest defective return rates in the industry. PRODUCT FEATURES: Adds two Hi-Speed USB 2.0 ports to your ExpressCard equipped PC notebook, desktop computer - supports data transfer rate up to 480Mbps; Works with USB (2.0 & 1.1) devices including digital cameras, scanners, CD/DVD & hard disk drives, memory card readers, and more; Compliant with USB specification, revision 2.0; RoHS compliant; Supports high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) data transfer modes; Supports simultaneous operation of USB 2.0 and 1.1 devices and connects up to 127 devices; Hot-swapping allows you to connect/detach USB devices without first turning your system off; Can be installed in an ExpressCard/34 or /54 slot.