Features: 100% brand new and high quality Super fast and high-capacity transfer solution, stable and reliable 6 USB3.0 Slots supports simultaneous operation of multiple USB 3.0, USB 2.0, and USB 1.1 devices,great extendability. Plug and play,without any extender cable, can be fixed to the case. PCI-E slot power solution, no extra power cable needed. Only one cable to the slot, easy and convenient to settle and install. Package Includes: 1PC x 6 Port USB3.0 PCIE Riser Card for Mining Specifications: Size:approx 119X59mm/4.68x2.32in Material: PCB-board Color: Black Applicable Slots: PCI-E X1/X4/X8/X16 Option Type: PCIE 1 to 6 Bandwidth: About 5GB/S Working Environment: 0-70 Applicable System: Windows XP/7/8/8.1/10 note: Keycaps only, Keyboards not included Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you