The Connectland SY-HUB20134 3.5" 4 port USB 3.0 bay hub can installed in a 3.5" front panel bay or a 5.25" bay with provide bracket. Our 4 port USB 3.0 Hub offers 4 extension ports for USB 3.0 and is backwards compatible with both USB 1.1 and 2.0 specifications. Once a USB 3.0 device is attached to PC via this Hub, a user may enjoy up to 5Gbps of transfer speed.