Mushkin 991306 DDR1 SODIMM 512MB PC3200 SODIMM 200p 3-3-3-8 NONE 2.5V Compatible Frequency This product is engineered to operate at the optimum frequency for compatibility with your system. Compatible Timings This product is programmed to use timings that offer maximum compatibility with your system and original memory. Lifetime Warranty Quality guaranteed - we offer a lifetime warranty on this product and genuine, unmatched service and support. Type: DDR SODIMM Voltage: 2.5V Speed Spec: PC3200 Frequency: 400MHz Capacity Kit Type: Module Module Size: 512MB Timings tCL: 3 tRCD: 3 tRP: 3 tRAS: 8 Cooling Technology Heatsink: None