- AT Backup Battery
- AT LED/Keylock
- Azalia Digital Header (ADH) Onboard digital audio connector found on some (ASUS?) motherboards supplied with Azalia CODEC
- Computer 3-pin fan connector
- IRDA There is no standard pinout, but some examples are listed.
- Motherboard 4 pin CPU PWM fan connector For 4-Wire Pulse Width Modulation (PWM) Controlled Fans
- Motherboard CPU Cooling fan connector
- PC Speaker connector
- Turbo LED connector
- USB motherboard internal connector Used for card-edge bracket additinal USB ports and internal cardreaders. This is very old and does not match most modern mother board usb headers.
- GeekPort The GeekPort is a connector available at Be´s BeBox computers. This is a dream for all hobby engineers who like to connect the computer to the coffee machine.
- Compaq iPAQ Desktop Serial Test Interface Compaq iPAQ Desktop 1.x legacy-free and iPAQ 2.0 include a serial header connector on the system board.
- External Infrared Transceiver connector used in Compaq PC
- Dell Dimension 2350, 2400 internal USB & Speaker 20 Pin Front panel USB, Speaker (Optional MIC) Proprietary
- DELL Dimension 9200 Fan Fan for CPU or HD
- Dell GX270 SER2 motherboard connector
- Dell PowerEdge 2300 internal USB connector 10 pin one row special USB connector
- Elpina M755 Audio Ports and Game/MIDI Port M755 Audio Ports and Game/MIDI Port Extension Bracket
- HP Compaq ProLiant ML310 G1 4-pin CPU Fan Proprietary 4 pin CPU Fan connector
- HP Compaq ProLiant ML310 G1 Case Fan Proprietary 5 pin Fan connector
- HP Compaq ProLiant ML310 G1 Second AUX Power Connector Proprietary 10 Pin PSU AUX Connector
- HP Microserver 12 FAN Pinout HP Microserver 12 FAN Pinout
- Sun Attachment Unit Interface (AUI) connector
- SUN SROMBO Available on SUN SPARCengine motherboards. Seems to be for SUN internal factory tests/programming.
- SUN SROMBOlite Available on SUN SPARCengine motherboards. Seems to be for SUN internal factory tests/programming
- Via motherboard vga connector VIA NAS 7800 mainboard VGA pin connector
