The 6GB DDR2 800 MHz SO-DIMM Memory Kit from OWC / Other World Computing includes a 2GB module and a 4GB module, both fully compliant with JEDEC specifications while meeting or exceeding
Apple/Intel specifications. These modules are non-ECC, non-parity, dual ranked, have a CAS latency of 6, and operate at 1.8V. SO-DIMMs are typically used in notebooks, but they can also be used in servers and other PCs with unique form factors.
Mac: MacBook (Mid 2009), iMac (24" Early 2008), iMac (20" Early 2008)
PC Laptops: Compatible with Intel / AMD processors that support the specifications listed