The UPD720210K8-BAF-A is a four-port USB 3.0 Hub integrated circuit manufactured by Renesas. It features a QFN-76(9x9) package, which is a surface-mount package with an array of 76 pins arranged in a 9x9 grid that provides high connection density and increased operating speeds. The device is compliant with the USB 3.0 and USB 2.0 specifications for both data transfer and power delivery, giving it the ability to communicate with both standards. It also features four upstream ports, allowing for four downstream devices to be connected simultaneously. It is also capable of providing up to 900mA of current per port, and supports up to 5Gbps of throughput, making it ideal for high-bandwidth applications.