Type: DDR2-800 PC2-6400 200-Pin Laptop SODIMM. Capacity:1GB/2GB DDR2 PC2-6400 Memory Voltage:1.8V Memory Frequency:PC2-6400 800MHz Interface Type:200pin NON ECC,16 Chips,non-registered,unbuffered When place order, pls ensure the parameter, any problems, pls email us at the first time, we will provide the best services and products.