100 Pin DIMM

A single inline memory module (SIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). The gold or tin pins on the bottom of the SIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a SIMM are connected, providing a single line of communication paths between the module and the system.

80-pin SIMMs are used only for flash memory. The number of black components on an 80-pin SIMM may vary, but they always have exactly 80 pins. 80-pin SIMMs are approximately 4.50″ long and 1″ high, though the heights may vary. They have one notch on the bottom left and one notch in the center of the module.

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