2 Port USB 3.1 Gen 2 10Gbps PCI-Ex Card, 2x USB-C - PEXUSB312C3
Available bandwidth is shared between both ports. Maximum throughput is limited by the bus interface; if used with PCI-Ex Gen 2.0 PC, the max is 5 Gb/s. If used with PCI-Ex Gen 3.0 PCthe max is 10Gb/s.