Features: Brand new and high quality 6 slots offer great expandability. Connects directly to the board without any extension cable, can be fixed to the chassis. PCI-E slot power solution, no extra power cable needed. Only one cable to the slot, easy and convenient to install. With IC heatsink. Specifications: Type Name: PCIE 1 to 6 USB3.0 Riser Card for BTC Miner Mining Color: Black Material: Metal + Plastic Bus Interface: PCI-E 1X USB Interface: Gold USB3.0 Port Quantity: 6 x USB3.0 Main Chip: ASM1187E Supported OS: for DOS, for Linux, for Windows XP/7/8/10 Note: 1. This extension applies to the motherboard's PCI - E 1X slot, please connect the floppy drive power cable. When connecting the PCI - E extension, the computer must be powered off. 2. The cable set is customized, never pull the cable to connect. Remember this! 3. When connecting the cable, you must identify the direction, do not reverse or displace, prevent burning the equipment, connect the cable first into the equipment's socket, then connect the cable, avoid pressing too hard so that the socket pin breaks. Package Includes: 1 x 6 Port Gold USB3.0 Riser Card for Mining