The 4 port hub is an Universal Serial Bus (USB) hub, which is an USB cable concentrator and a bridge between PC USB host controller and USB devices. The USB hub has one upstream port and four downstream ports.
Features
Users friendly plug-n-play and hot-swapping features allow you to attach/remove USB devices without turning your system off.
Providing Two Fully Compliant port at 1.5Mbps/12Mbps (for low speed/full speed devices)
Up to 12Mbps Bandwidth to USB Device
Hot Swap - Fully Support of Real Time Dynamic Insertion and Removal of Devices
Support Self-Power Mode
Tiered Star Topology, adding up to 127 USB-Ready devices
Portable and Daisy Chainable
4 Downstream Ports with over-current detection and protection per port