Kingston 1GB 200-Pin DDR2 SO-DIMM Unbuffered DDR2 667 (PC2 5300) System Specific Memory Model KFJ-FPC218/1G Compatible System: Fujitsu Siemens: LifeBook T4210 Lifebook S Series S7110 Lifebook E Series E8110 Lifebook E Series E8210 Lifebook N3500 Series N3530 Lifebook S Series S6310/S6311 Parts: Lifetime limited Labor: Lifetime limited