OWC 4GB PC5300 DDR2 667MHz SO-DIMM Memory RAM Upgrade Compatible with MacBook (Late 2007/Early 2008), MacBook Pro (Mid/Late 2007, Early 2008), & iMac (Late 2007) with Core 2 Duo CPU (OWC5300DDR2S4GB)

Product Specs: Size: 4.0GB | Technology: DDR2 SDRAM | RoHS: Yes | Data Rate: 667 MT/s | Speed: PC2-5300 | CL: CL=5 | Voltage: 1.8V | Non ECC | Dual Rank | Non Parity | Low Noise 8-Layer PCB | Meets or Exceeds Apple /Intel Specifications | Fully compliant with JEDEC specifications | Warranty Safe Upgrade. | OWC Memory Lifetime Limited Warranty including OWC Lifetime Advanced Replacement Program | OWC Memory fully meets Apple's specifications with special attention to proper thermal specifications.