The PCI-E 1x to 16x Powered USB3.0 GPU Riser Adapter Card Ver 009s Miner Lot Of 6 is a non-RAID controller card with four external USB 3.0 ports. It is designed to convert a PCI port into multiple USB ports, providing an efficient solution for expanding port options on a computer. This unit is compatible with PCI ports and is ideal for those looking to add more USB ports to their system for improved connectivity and functionality.