Memory card reader Transfer SpeedHi-Speed USB 2.0 480Mbps max., Compatible ... to a USB port without the need for cable.1 slot supports 4 types of memory cards: SD, MMC, MMC RS, T ... , no external power supply is needed.Power LED indicator.Perfect for mobile user.Supported Windows ME/2000/XP, Linux core 2 ... OS 8.6 & above.Color Black&white &yellow. USB2.0 Memory card reader for SD, MMC, MMC RS, T-flash