... usage luminous LED indicator inside USB plug Fully supports SD/MS memory card reader and writer Compliance with USB 2.0 full-speed, 12Mbps ... and low-speed 1.5Mbps operations For PCs, Notebooks, palmtops, PDAs with USB ... 2.4 or later, Mac OS 8.6 or later Reader and writer supports: smart media, multimedia, secure digital card, memory stick ...