[quote name='jlazenby1']I paid I believe $20 just for the expansion but that was off amazon, watch out for expansion knockoffs though, heard alot online about knockoffs crashing the systems[/QUOTE]
I can say that my Pelican expansion kit is very reliable, although aesthetically an eyesore. It sticks out above the expansion slot and just makes the whole unit look weird. But I never had a problem with system crashes. So maybe it depends on the brand?
(I personally prefer 1st party hardware but it was a gift at the time)