1. No external power supply, plug and play, more stable
2. The 4 USB cables are routed in the same direction, the routing is neat and not messy
3. It can be expanded to 4 PCI-E, effectively solving the insufficient PCI-E interface
4. Aluminum alloy heat dissipation, durable and enhance the stability of operation
5. Number of interfaces: PCI-E X1 interface x 4
6. Product interface: support PCI-E X1 (compatible with X4 X8 X16)
7. System: Mac OS/Windows/Linux
8. Dimensions: about 65 x 55mm
9. Weight: about 45.8g