I don't know the differences. I looked at the first one, the one you ordered, and it appears compatible. You could try the one that you were sent, provided the seller will accept a return and give you a refund if it doesn't work. If you want to be certain, buy the Crucial RAM that I suggested and linked, as it is guaranteed to work.
Hello.Need help for memory upgrade (from 8 Gb to 16 Gb, in Vostro 7620). I see that there're two SK Hynix memories (16 Gb) that should be compatible with Vostro 7620: HMCG78MEBSA092N and HMCG78AEBSA095N. Are they really compatible? Which one would be the best for this laptop, and why?Thanks.
SK Hynix memories for Vostro 7620