This internal expansion front panel bracket is designed for vacant 5.25 -inch optical drive bays to upgrade your PCs front I/O. It combines USB-C and USB 3.0 Type-A interfaces to expand available ports for flash drives, external HDD/SSD, smartphones and daily office peripherals. A complete 20Pin internal wiring cable is pre-attached, enabling simple connection to the motherboards native USB header without extra adapters. All ports sit on the front of the chassis for convenient daily use. Compliant with USB 3.0 standard, it delivers steady 5Gbps bandwidth for fast file transfers. No driver installation required after mounting, an affordable port upgrade solution for gaming rigs, design workstations and household desktops.