A PCI Express, Version 1 high-end video card using PCIe x16 slots.
PCIe 16x Video Card
A lot of hard disk docking stations use these kind of power supplies.
the answer is audio input/ output
The Nest thermostat uses a micro USB power connector.
A graphics card often requires extra power and connects via a 12V 6-pin power connector to support its higher power demands. You can typically find this connector on the graphics card itself and on the power supply unit (PSU) of the computer, where it provides additional power necessary for optimal performance.
S-Video
A regular ATX motherboard uses a single 20-pin P1 connector with optional 4-pin auxillary power connector
A PCI Express, Version 1 high-end video card using PCIe x16 slots.
S-Video
The connection to the VDU or display unit.
which of the following device uses a 6-pin Mini DIN connector a. ps/2- style mouse
"The 6-pin PCIe connector provides an extra +12 V for high -end video cards using PCI Express, Version 1 standard." Source:A+ Guide to hardware by Jean Andrews pg. 12