All of my RAM has been purchased from
Other World Computing (OWC). They sell the same DIMMs Apple uses at a small fraction of what Apple charges.
How do you determine that?
The PPC DIMMs I've purchased from Crucial have had OEM stickers on them (Samsung, once, but that was returned...packaging, rather than performance, problems), but the DIMMs I purchased for my MacBook have Crucial stickers.
I somehow think that Apple does not use OEM any more, but I've no idea what they use in its stead.
