Fits into any 5.25 ?? front panel of computer case, easy to install and use. Compatible with USB 3.0, also backward compatible with USB 2.0 /USB 1.1. Made of aluminium alloy material, which ensures the durability. The USB ports with up to 5Gbps transfer speed, which can transfer data and files quickly. Features one USB 3.0 /20PIN slot to extend the front panel of computer case.