Acer TRAVELMATE 636LCI P4-2G, 2 GHz, 15", 0.5 GB, DDR-SDRAM, 40 GB Acer TRAVELMATE 636LCI P4-2G. Processor frequency: 2 GHz. Display diagonal: 15". Internal memory: 0.5 GB, Internal memory type: DDR-SDRAM. Total storage capacity: 40 GB