144-pin MicroDIMM
Approximately 1.545 in. by 1 in. (39.2 mm by 25.4 mm)
A micro dual inline memory module (MicroDIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). MicroDIMMs get their name because they are smaller than both regular DIMMs and SODIMMs. The gold pins on the bottom of the MicroDIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a MicroDIMM are not connected, providing two lines of communication paths between the module and the system.
144-pin MicroDIMMs are commonly found in sub-notebook computers. 144-pin MicroDIMMs are available in PC100 SDRAM. When upgrading, be sure to match the memory technology that is already in your system. (Information about which memory technology your system uses is included in the Crucial¿ Memory Advisor™ tool.)
The number of black components on a 144-pin MicroDIMM can vary, but they always have 72 pins on the front and 72 pins on the back for a total of 144. 144-pin MicroDIMMs are approximately 1.545 inches long and 1 inch high, though the heights can vary. Unlike SODIMMs, MicroDIMMs do not have any notches along the bottom edge.