Provides 4 external usb 20 ports in a compact and portable form factorr r connect up to 4 usb 201x devices simultaneously at up to 40 mbpsr powered from usb and a compact design for easy portability and user backed by a startechcom 2 year warranty and free lifetime technical supportr r the st4200mini mini 4 port usb hub allows you to turn a single usb connection into four usb ports and based on a small form factor design requires minimal space to install r an ideal laptop accessory for