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).