2 Ports USB-C & 2 Ports 3.0 USB This allows you to convert an unused 3.5’ floppy drive space into 4 USB-C / USB 3.0 ports Installation is quick and easy, and the unit is plug and play Simply fit the bay into the space with the screws provided, plug the bay into the USB 3.0 connector on the motherboard, and you’re all set Data Transfer Rate: Up to 5.0GB/s USB 3.0 SuperSpeed 15-pin SATA power connector to power USB devices from your PC power supply