Final answer:
A DDR2 SDRAM Micro-DIMM has 172 pins. . This type of memory module is used in laptops and other small form factor devices, where space is limited.
Step-by-step explanation:
A DDR2 SDRAM Micro-DIMM has 172 pins. This type of memory module is used in laptops and other small form factor devices, where space is limited. The pins on the Micro-DIMM module provide the electrical connections between the memory module and the motherboard, allowing the data to be transferred.