TUSB4041I Four-Port USB 2.0 Hub Texas Instruments TUSB4041I Four-Port USB 2.0 Hub provides USB high-speed or full-speed connections on the upstream port. The device also provides USB high, full, or low-speed connections on the downstream ports. When the upstream port is connected to an electrical environment that only supports high, full and low-speed connections, the USB high, full and low-speed connectivity is enabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full or low-speed connections, the USB high-speed connectivity are disabled on the downstream ports. The TUSB4041I supports per-port or ganged power switching and overcurrent protection, and supports battery charging applications.