thats not an earthshatteringly low price... although cheaper than i thought. some things too look into:
- pipecount
- clock speed
- the MAKE of the memory (i.e., samsung, hynix, crucial etc)
If its a crucial you'll know. It has the nonstandard heatsink shape thingy. As for the others you'll have to read the chips. That's just to get the make. Now the quality and model of RAM is a different story