Sharing 4 USB (Universal Serial Bus) devices for 2 users Fully compatible with USB (Universal Serial Bus) 1.11.0 specification Over current protection LED status indicators Huge saving on working time & equipment investment PC & MAC compatible WIN 982000MEXP 4 port USB (Universal Serial Bus) switching hub has all the features of a normal USB (Universal Serial Bus) 1.1 hub as well as a sharing function like a switch box. It fully supports 2 users or 2 PCs to share 4 USB (Universal Serial Bus) devices by pressing the switch button. LEDs indicate the current status for the user to identify easily