Mushkin 971093B DDR1 UDIMM 512MB PC2700 Apple OE 2.5-3-3-7 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 Voltage: 2.5V Speed Spec: PC2700 Frequency: 333MHz Capacity Kit Type: Module Module Size: 512MB Timings tCL: 2.5 tRCD: 3 tRP: 3 tRAS: 7 Cooling Technology Heatsink: None