Features:100% brand new and high qualityOne Set Riser(6PIN Power Supply):2 layer PCBs bard designing.Use for graphic card mining.1-slot PCI-E 1X to 4 slot 16X riser card with high speed USB 3.0 cable.High speed USB 3.0 shield cable is flexible for 1U,2U,3 U chassis.Support 4 port high speed PCIe 16X card.Solid capacitor provide extra stable power supply for PCI-e card .Function: Dedicated for bitcoin mining.One Set-blue 4-Port Riser Card:4 Slots brings great extendability.Plugs directly to the board 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.With IC heat radiator.Package Includes:A/B OptionalA: 1Set x PCI-E Riser Board(6 pin)B: 1Set x PCI-E Riser Board (sata)Specifications:Type name: PCIe to 4-port USB3.0 Riser Card for MiningColor:BlackMaterial: Metal+PlasticBus Type: PCI-E X1Port Quantity: 4x USB 3.04-Port Riser Card Size: approx.12x7.5x5.5cm/4.72x2.96x2.17inSupported OS: for DOS, for Linux, for Windows XP/7/8/10note:Due to the original production of raw materials shortage and production batches are different, the card slot and the cable color will have some differences, but the card is the same function, please rest assured absolutely does not affect the normal use, hope to understand.(Colors will be shipped randomly)There might be little error of size for manual measurement.The colors deviation might differ due to different monitor settings, please kindly understand.