Common Layouts
Connectors are categorized by pin spacing in mm (pitch), number of pins, and number of rows. Connectors commonly used in computers include:
- 3.5 in IDE desktop computer hard disc drives - 2.54 mm pitch, 40 pins, 2×20 (2 rows of 20 pins)
- 2.5 in IDE notebook computer hard disc drives - 2.00 mm pitch, 44 pins, 2×22 (2 rows of 22 pins)
- SCSI SE 8-bit - 2.54 mm pitch, 50 pins, 2×25 (2 rows of 25 pins)
- Floppy disk - 2.54 mm pitch, 34 pins, 2×17 (2 rows of 17 pins)
- Serial DE-9 on motherboards - 2.54 mm pitch, 10 pins, 2×5 (2 rows of 5 pins) - sometimes called everex
- Serial DB-25 on motherboards
- Parallel DB-25 - 2.54 mm pitch, 50 pins, 2×13 (2 rows of 13 pins)
Read more about this topic: Insulation-displacement Connector
Famous quotes containing the word common:
“Nothing in the world can take the place of Persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and Determination alone are omnipotent. The slogan “Press On”, has solved and will always solve the problems of the human race.”
—Calvin Coolidge (1872–1933)