Item Type: Computer Front Panel Hub Material: ABS Interface: USB3.0 x 21,DUAL PORT EXPANSION: The Computer front panel hub has two USB 3.0 ports for connecting two USB devices at the same time, which can meet the basic needs of users in daily use. 2,5GBPS: Based on USB3.0 specification, it can realize up to 5Gbps transfer rate, 10 times faster than USB2.0, which can quickly transfer large files, HD videos, etc., and enhance work efficiency. 3,POWERFUL COMPATIBILITY: Backward compatible with USB2.0 and USB1.1 devices, it can be connected to a variety of USB devices, such as mice, keyboards, printers, cameras, etc., to meet the needs of different users. 4,EASY INSTALLATION: USB 3.0 front panel for 5.25 inch optical drive bay can be installed on the front panel of the computer chassis without opening the chassis, easy and fast. 5,PRACTICAL: The appearance is made of ABS material, smoothly and flat, the color is coordinated with the computer chassis, which makes the whole chassis look more beautiful, and also provides practical expansion functions. 1 x Front Panel Hub 5 x Screws