Three USB ports available to add USB devices USB 2.0 interface and USB 1.1 compliant Supports the following memory cards: Compact flash I/II Compact flash USB Compact flash ultra Micro drives Memory stick Memory stick switch Memory stick pro Magic gate memory stick Magic gate memory stick duo Multimedia card (MMC) Secure digital (SD) Smart media LED power indicator/data indicator light Remarkable high-speed digital image Data transfer rate: 480Mbps Plug-and-play and hot-swap functions Bridges gap between computer and devices such as digital cameras, digital camcorders, portable MP3 players, as well as peripherals such as scanners, external hard drives, and more Combining six high-speed USB 2.0 ports with a 12-in-4 card reader Elegant system delivers lightening-fast connectivity as well as file transfer capabilities Requirements for Mac users: Mac with USB support Mac OS 8.6 to 9.x Mac OS X For PC users: PC compatible, 200MHz or greater with USB support Windows 98SE, 2000, ME, and XP Minimum 64MB RAM Operates as USB 1.1 device Will operate at 1.1 speeds when used with USB 1.1 port