2GB Kit (2×1GB) PC3200 400MHz DDR Desktop DIMMs , notebook computers and processors such as Intel¿s Pentium, Celeron, AMD¿s Athlon, Sempron and others. PNY upgrade modules are compatible with systems from Apple, Compaq, DELL, Gateway, HP, IBM and over 5000 other systems. Boost the performance of your PC to its maximum capability. PNY memory upgrades will prove to be an outstanding value both now and in the future.