ERCRYSTO Card Reader and 3 Ports USB Hub, High Speed External Memory Card Reader (MS, Micro SD,SD/MMC,M2,TF Card), White. High Efficiency -- All ports can work together at the same time,easily to transport data from each card or connectiong device. High Speed -- Supports USB 2.0, compatible with USB 1.1, and runs at 480Mbps.Powered by USB port, no external power needed. Compatibility -- Multi-function: 3 Ports USB 2.0 Hub + Card Reader for MS/MS PRO DUO, SD/MMC, M2, Micro SD(TF card) Convenient -- Avoid the hassle of carrying multiple card reader adapters, and you can transfer photos, music, data with this combo. Easy to Use -- Lightweight and portable. Low power consumption, it is suitable for desktop & notebook PC.