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2. Molex connector - Wikipedia

   en.wikipedia.org/wiki/Molex_connector

   The most notable difference from modern 20/24-pin ATX power connectors is that the AT power supply connector did not have a signal to turn on the power supply, and also did not supply separate, "always-on" +5V standby power. The power supply was instead turned on and off via a mechanical switch that disconnected mains power.

3. Power supply unit (computer) - Wikipedia

   en.wikipedia.org/wiki/Power_supply_unit_(computer)

   A power supply with a 24-pin connector can be used on a motherboard with a 20-pin connector. In cases where the motherboard has a 24-pin connector, some power supplies come with two connectors (one with 20-pin and other with 4-pin, i.e. 20+4-pin form) which can be used together to form the 24-pin connector.

4. ATX - Wikipedia

   en.wikipedia.org/wiki/ATX

   An ATX power supply provides a number of peripheral power connectors and (in modern systems) two connectors for the motherboard: an 8-pin (or 4+4-pin) auxiliary connector providing additional power to the CPU and a main 24-pin power supply connector, an extension of the original 20-pin version. 20-pin Molex 39-29-9202 at the motherboard. 20-pin ...

5. PS-ON Signal - Wikipedia

   en.wikipedia.org/wiki/PS-ON_Signal

   PS-ON Signal is a pin on a 20-pin or 24-pin ATX-specified power connector used to turn a personal computer power supply unit on/off. The PS_ON pin is normally pulled high in an open-circuit, but will turn on the power supply when it is pulled low, by shorting it to the common signal (COM). Conversely the power supply is turned off when the PS ...

6. Berg connector - Wikipedia

   en.wikipedia.org/wiki/Berg_connector

   The power connector on the 3½-inch floppy drive, informally known as "the Berg connector", is 2.50 mm pitch (distance from center to center of pins). The power cable from the ATX power supply consists of 20 AWG wire to a 4-pin female connector. [1] The plastic connector housing is most often white, as shown (TE Connectivity / AMP 171822-4 ...

7. 16-pin 12VHPWR connector - Wikipedia

   en.wikipedia.org/wiki/16-Pin_12vHPWR_connector

   The connector was formally adopted as part of PCI Express 5. [1] The connector was replaced by a minor revision called 12V-2x6 (H++), introduced in 2023, [2] [3] which changed the GPU- and PSU-side connectors to ensure that the sense pins only make contact if the power pins are seated properly. The cables and their connectors remained unchanged ...

8. AT (form factor) - Wikipedia

   en.wikipedia.org/wiki/AT_(form_factor)

   Baby AT motherboard An ATX Form Card, used by later Baby-AT motherboards to allow for USB, PS/2 mouse, and IR connectivity through headers. In 1987, the Baby AT form factor was introduced, based on the motherboard found in the IBM PC/XT 286 (5162) [2] and soon after all computer makers abandoned AT for the cheaper and smaller Baby AT form factor, using it for computers that spanned several ...

9. SCSI connector - Wikipedia

   en.wikipedia.org/wiki/SCSI_connector

   The power connector was typically the same 4-pin female Molex connector used in many other internal computer devices. The communication connectors on the drives were usually a 50 (for 8-bit SCSI) or 68 pin male (for 16-bit SCSI) " IDC header " which has two rows of pins, 0.1 inches apart.