Features: brand new and high quality 2 layer P c b board designing. Compliant with PCI for express 2.0, 1.1 Specification. 1-slot PCI-E 1 x to 4 slot 1 x riser card with high speed USB 3.0 cable. High speed USB 3.0 shield cable is flexible for 1/2/3 u chassis. Support 4 port high speed PCIe 1x card.6. Solid capacitor provide for extra stable power supply for PCI-e card. Specifications: Color: Blue Material: Copper Core Mainboard size: 9.7x6.3cm/3.82x2.48in Product interface: PCI-E 1x Cable length: 60cm Supported system: Compatible for Linux for Mac/all for Windows systems Note: 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! Package includes: 1 x 1 to 4 Mining Board Adapter 1 x PCI-E 1x Riser Card 1 x USB 3.0 Cable