Сeramic capacitors. Three connectors for external fans. Two six pin connectors for power input and three eight pin connectors (GPU pinout) for power output. Two way for power of a GPU: standard (PSU->riser, PSU->GPU) and additional (PSU->riser, riser->GPU). Specially designed for heavy 24/7 load. Ideal for existing and future powerful GPUs. The set includes only what you see on the first photo (riser, usb cable, adapter sata to 6pin (Only for 6 pin pinout demonstration, be careful and don't power the riser though it. Using this type of adapter (sata to six pin) may result in fire and equipment failure).Feel free to contact for the volume pricing.