PC3200 = DDR1 400MHZ (Compatible with DDR1 333MHZ, DDR1 266MHZ). PC2700 = DDR1 333MHZ (Compatible with DDR1 333MHZ). MODEL: LAPTOP DDR1 1GB. PC2100 = DDR1 266MHZ. Pins: 200pin. CAPACITY: 1GB. DDR for Laptop=200 pins.
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