This internal front panel expansion bracket fits universal 5.25 -inch optical drive bays of desktop chassis to upgrade front port quantity. It comes with a combination of USB 3.0 Type-A and USB-C ports, supporting simultaneous connection of mice, keyboards, storage drives, smartphones and other USB devices. All interfaces are exposed on the front of the case, greatly simplifying daily plug-and-unplug operations. It connects to the motherboards built-in USB header via internal wiring for reliable signal transmission. Complying with USB 3.0 standard, it delivers smooth high-speed file copying performance. No extra driver installation is needed, making it an economical and practical internal port expansion accessory for gaming rigs, office workstations and household desktops.