Editing De facto standard (section)

===Connectors and interconnect standards===

* [[Phone connector (audio)|Phone connector]] (3.5&nbsp;mm jack), [[RCA connector|RCA]] and [[XLR connector|XLR]] connectors, used in the audio industry for connecting audio equipment such as headphones, mixing desks, microphones, stage lighting, etc.
* [[MIDI]] connection (using [[DIN connector]] or Phone connector), electrical and protocol standard for connecting musical instruments, synthesizers, drum machines, sequencers, and some audio equipment.
* [[DMX512]] (commonly just DMX) with [[XLR connector]] to control and sometimes power stage and venue lights, effects, smoke machines, laser projectors, and pyrotechnics.
* [[PCI Express]] electrical and mechanical interface, and interconnect protocol used in computers, servers, and industrial applications.
* [[GPIB]], multi-device bus protocol, mechanical and electronic interface commonly found in electronic test equipment, e.g. digital [[multimeter]]s, [[oscilloscope]]s, etc. Initially created by Hewlett [[Hewlett-Packard]] as HP-IP. Commonly used with [[SCPI]] protocol.
* [[HDMI]], [[Display Port]], [[VGA]] for video, [[RS-232]] for low bandwidth serial communication.
* [[USB]] for high speed serial interface in computers and for powering or charging low power external devices (like mobile phones, headphones, portable hard drives) usually using micro USB plug and socket.
* [[BNC connector|BNC]] for medium frequency signal in electronic engineering testing (commonly used by signal generators, oscilloscopes, multimeters, etc.) and sometimes in video signal delivery between devices in studios and other professional settings.
* [[AMP Incorporated|AMP]]'s AMP MATE-N-LOK / [[Molex connector|Molex]]'s Standard .093" Pin Power plug and socket, commonly used on hard drives, and other medium power devices both in PC, server, industrial applications, and others where standardized power connector for 5V and 12V is required, and off the shelf [[Power supply unit|PSU]] can be used. In embedded applications it is usually replaced with smaller square connector, that is easier to connect.
* 2.54 mm (0.1 inch) pin spacing on many electronic components, including [[Dual in-line package|DIP]], [[Dual in-line- package#Single in-line|SIL]] packages, [[header connector]]s, and many more. The standard spacing enable use of these devices in prototyping boards and standardized sockets.
* [[4-20mA]] current loop, used in industrial control and automation.
* 3.5 inch and 2.5 inch hard drives.
* [[19-inch rack]] standards for telecommunication, server, storage, audio, music, video, and power equipment.
* [[ATX]] motherboard, back plane, and power standards.