PCI-E X4 to 6 Port USB 3.0 20Gb Adapter Riser Card Extender Board Mining ASM1812
Main Chip: ASM1812. When plug PCI - E extension must be computer broken wires plug again. 1 x 6-port USB3.0 Riser Card for BTC Mining. Plugs directly to the board without any extender cable, can be fixed to the case.