HP Toshiba IBM Compaq Dell Sony Acer Gateway Intel Pentium4 2.88 GHz processor CPU -P000372310CPU speed is 2.88 GHZ, L2 cache is 512KB, bus speed is 533 Mhz, voltage is 1.525vCompatible Models:Satellite A20, Satellite A20-S207, Satellite A20-S208, Satellite A20-S259, Satellite A20-S2591, Satellite A20-SP259, Satellite A20-SP279, Satellite A25-S207, Satellite A25-S208, Satellite A25-S279, Satellite A25-S2791, Satellite A25-S2792, Satellite A25-S307, Satellite A25-S3072, Satellite A25-S308, Satellite A25-SP259, Satellite A25-SP279,Satellite A20, Satellite A20-S207, Satellite A20-S208, Satellite A20-S259, Satellite A20-S2591, Satellite A20-SP259, Satellite A20-SP279, Satellite A25-S207, Satellite A25-S208, Satellite A25-S279, Satellite A25-S2791, Satellite A25-S2792, Satellite A25-S307, Satellite A25-S3072, Satellite A25-S308, Satellite A25-SP259, Satellite A25-SP279