Rosewill PCI-e 1x to PCI-e x16 Slot Transfer Card RCRC-17001. Get into mining with these Riser Card that fits PCIE 16x, 8x, 4x, and 1x slots. The Rosewill RCRC-17001 Riser Adapter Card kit is the perfect solution for setting up Ethereum mining rigs, whether small open air rigs or large rack based miners. The PCI-E riser card (riser adapter) perfectly fits PCI-E 16x, 8x, 4x and 1x slots. With four holes, it can be easily attached to your rig. No drivers are needed to install.The riser card features gold-plated contacts for flawless connectivity and a long lifespan. It comes with four high-quality solid capacitors for stable and safe power delivery. It has multiple voltage regulation components (Voltage Regulating Diode and Linear Regulator), and provides overcurrent protection (Surface Mounted Fuse) to safeguard your components in the event of a short circuit.A 6-pin PCI-E power to 15-pin SATA power cable is offered for direct connection to your power supply. It reduces power burden on motherboard and ensures compatibility with power supply unit (PSU), especially high capacity PSU. The included USB 3.0 riser cable is 60cm in length, providing great flexibility for the placement of your PCI-E devices.