Startechcom multiport usb 20 hubs startechcom st4202usbgb this 4 port usb 20 hub from startechcom connects to one usb 20 port on a mac or pc computer adding four usb 20 ports so allowing you to maximise the number of high speed usb peripherals connected to your computerthe hub supports cascaded installation with other usb 20 hubs supporting up to 127 usb 20 device connections a scalable solution for connecting multiple usb devices to a single host computer this hub includes a