It is a multi-functional front panel with card reader, eSATA, 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 personal external eSATA and USB devices without data damage and save time. Made of high quality smart chip, durable quality, super speed and safer data transfer, user-friendly performance. The card reader Features eight slots to provide easy and fast access to most popular cards, for SD card, CF card, TF card, M2 card, MMC/MS cards and SIM/SMART cards. Features: High compatibility, all-in-one card reader supports most available cards, for SD card, CF card, TF card, M2 card and MMC/MS and SIM/SMART cards. Front microphone and speaker ports on the front panel audio output interface, efficiently avoid inconvenience of plugging behind chassis. Dual USB 3.0 ports hub enable two devices fast charging & high speed transferring simultaneously, convenient and efficient. Up to 3Gbps transmission rate of eSATA and up to 5Gbps transfer speed of USB 3.0 interface, satisfy your multiple needs. Perfectly insert with your 5.25" bay, the computer turns out to be multifunctional immediately, the eSATA, two USB 3.0 ports 8-slot on front panel for easy and quick access to external devices and card. Specification: Material: ABS Color: Black Interface: USB 3.0 Fits bay size: 5.25inch Ports: 1 * eSATA Port 2 * USB 3.0 Port 1 * Speaker Port 1 * Microphone Port Slots: 8 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 and SIM/SMART cards. Operating system: for Win98/7/8/Me/2000/XP/Vista, for Mac9.X/10.X/Linux11 Item weight: Approx. 276g/ 9.7oz Package size: 17 * 14.3 * 4.5cm/ 6.7 * 5.6 * 1.8in(L * W * H) Package weight: 341g/ 12oz 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.