661-4177 1 GB, DDR2 SDRAM, 667, SO-DIMM - A1200 24 inch 2.16-2.33GHz iMac NB-3349W
This is a 1GB DDR2 PC5300 SODIMM for many models of the Macbook, Macbook Pro, Mac Mini, iMac, etc..
Apple part number: 661-4177
Compatible models: A1200-MA456LL-White, A1200-CTO-White,
Compatible Mac info. : 24-inch 2.16GHz Intel Core 2 Duo iMac , 24-inch 2.33GHz Intel Core 2 Duo iMac
661-4177 1 GB, DDR2 SDRAM, 667, SO-DIMM - A1200 24 inch 2.16-2.33GHz iMac