2.5"/3.5" EN389-S2HC USB 2.0/eSATA Hard Drive Dock w/Built-in USB Hub & Card Reader 2.5"/3.5" USB 2.0/eSATA HDD Dock with Built-in USB Hub Card Reader General Features: Black housing Fits 2.5-inch and 3.5-inch SATA hard drives (not simultaneously) Built-in 2-port USB 2.0 Hub Built-in Card Reader One Touch Backup button eSATA transfer rate up to 1.5 GB/s USB 2.0 transfer rate up to 480 Mbps Hot Swap support Supports SATA Spread Spectrum Clock