4GB Kit ( 2 x 2GB Modules ) DDR2 667 MHz ( PC2-5300 ) DDR2 SO-DIMM ( 200-Pin ) Non-ECC Unbuffered Apple Mac Certified Memory RAM Upgrade Designed For Select Apple Mac Systems: MacBook Pro, MacBook, iMac, Mac mini (for a complete list of compatible systems, see the description section) Compatible Apple Order Numbers: MA456LL / MA589LL / MA590LL / MA609LL / MA610LL / MA611LL/A / MA699LL/A / MA700LL/A / MA701LL/A / MB061LL/A / MB062LL/A / MB063LL/A / MB138LL/A / MB139LL/A Compatible Apple Model IDs: iMac5,1 / iMac6,1 / MacBook2,1 / MacBookPro2,1 / MacBookPro2,2 / Macmini2,1 Compatible Apple Model Numbers/EMC: A1176 (EMC 2108) / A1181 (EMC 2121) / A1181 (EMC 2139) / A1200 (EMC 2111) / A1207 (EMC 2118) / A1208 (EMC 2114) / A1211 (EMC 2120) / A1212 A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase