661-3962, 13-inch Macbook, 1.82-2GHz Core Duo SDRAM, 1 GB, DDR, 667, SO-DIMM NB-1774W
This is a 1GB DDR2 PC5300 SODIMM for many models of the Macbook, Macbook Pro, Mac Mini, iMac, etc..
Apple part number: 661-3962
Compatible models: White-A1181, White-A1181, MA254LL/A, MA255LL/A, MA472LL/A,
Compatible Mac info. : 1.83GHz Core Duo 13-inch 2.0GHz Core Duo 13-inch 2.0GHz Core Duo 13-inch Macbook
661-3962, 13-inch Macbook, 1.82-2GHz Core Duo SDRAM, 1 GB, DDR, 667, SO-DIMM