TUSB8042A Four-port USB 3.2x1 Gen1 Hubs Texas Instruments TUSB8042A Four-Port USB 3.2x1 Gen1 Hubs provide simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port. The Texas Instruments TUSB8042A also provides SuperSpeed USB, high-speed, full-speed, or low-speed connections on the downstream ports. SuperSpeed USB connectivity is disabled on the downstream ports when the upstream port is connected to an electrical environment that only supports high-speed or full-speed/low-speed connections.