MEMORY 512MB 1RX8 PC2-5300U-555-12-ZZ, HP 377725-888, M378T6553EZS-CE6-2 - SAMSUNG/HP
Assorted (1 x 512MB) DDR2 Desktop RAM – MSU Surplus Store
RMN1150EG38D6F 512MB 1Rx8 DDR2 SO-DIMM PC2-5300 667MHz 200-Pin Non-ECC CL5 1.8V Laptop Memory Module RMN1150EG38D6F-667 Compatible Replacement Spare Part for Ramaxel Compatible and Other Systems at Amazon.com
HYMP564F72CP8D3-Y5 HYNIX 512MB (1X512MB) 1RX8 PC2-5300F MEMORY at Amazon.com