Mushkin 991130 DDR1 UDIMM 1GB PC3200 Unbuff 3-3-3-8 None 2.6V 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 Voltage: 2.6V Speed Spec: PC3200 Frequency: 400MHz Capacity Kit Type: Module Module Size: 1GB Module Build: 128Mx64 Chipset Density: 64Mx8 Timings tCL: 3 tRCD: 3 tRP: 3 tRAS: 8 Cooling Technology Heatsink: None