1. Transmission rate: USB3.0/5Gbps, USB2.0/480Mbps
2. Simultaneous expansion of 2 ports 3.0 + 2 ports 2.0
3. Protruding the chassis motherboard USB3.0 interface 4 ports (2 port 3.0 + 2 port 2.0) 3.0 expansion front floppy drive position
4. Size: 10.5X5.5X1.5CM
5. Weight: 150g
