CS-UC30 Features Leather case Storage capacities:Memory flash 64MB/128MB/256MB/512MB/1GB/2GB (Optional) USB host interface:USB 1.1/2.0 Speed: Read:960KB/s(1.1)/8MB/s(2.0) Write:860KB/s(1.1)/7MB/s(2.0) Deft configuration, shockproof and moisture-proof No drive needed Over ten years data retention Hot plug-and-play Driver: Only Windows 98/SE, Windows ME, Windows 2000/XP, Mac OS 9.X, Mac OS X, Linux 2.4.X which support USB mass storage Color: black, brown