It is a multi-functional front panel with card reader,eSATA, SATA, audio ports, dual USB 3.0 hub and backward compatible with USB 2.0 and USB 1.1. eSATA ensures high speed data transmission rate between computer and external eSATA and USB devices without data damage and save time. Made of high quality smart chip, durable quality, super speed and r data transfer, user-friendly performance. The card reader features five slots to provide easy and fast access to most popular cards, for SD card, CF card, TF card, M2 card and MMC/MS cards. Specification: Mode number: WLX-525E Material: ABS Color: Black Interface: USB 3.0/2.0 Fits bay size: 5.25inch Ports:1 * eSATA Port 1 * SATA Port 2 * USB 3.0 Port 6 * USB 2.0 Port 1 * Speaker Port 1 * Microphone Port Slots: 5 Slots Card Reader Output voltage: 12V/5V Supply port: 4pin power interface Integrated card reader: for SD card, CF card, TF card, M2 card and MMC/MS cards. Operating system: for Win98/7/8/Me/2000/XP/Vista, for Mac9.X/10.X/Linux11 Item weight: Approx. 301g/ 10.6oz Package size: 17 * 14.3 * 4.5cm/ 6.7 * 5.6 * 1.8in(L * W * H) Package weight: 367g/ 12.9oz Package list: 1 * 5.25" Internal SATA e-SATA Dual USB 3.0 Six USB 2.0 Five-in-one Card Reader Multi-Function Front Panel Media Dashboard 4 * Screw 1 * User Manual(English & Chinese) Note: Card reader can read only one memory card at one time. Notice the connection direction of the 4pin power connector, if not obey the correct link method, a short circuit will be caused. Unplug the 4pin cord connected to the computer when the computer can not be shut down.