ORage> (SO-DIMM) A smaller kind of DIMM with 72 pins (suppORting 32-bit transfers) OR 144 pins (64-bit transfers). Regular DIMMs have 168 pins and suppORt 64-bit transfers. Being roughly half the size of the regular DIMM, SO-DIMMs are often used in notebook computers. {Kingston MemORy Guide (http://www.kingston.com/tools/umg/newumg05a.asp)}. (2001-02-16)