Difference with this two WD Caviar Black 1 TB drives

Robhao

Honorable
Jul 31, 2013
39
0
10,540
Hello everyone, I'll like to ask waht's the difference between this two hard drives because they offer the almost the same but have different price., I'm trying to replace an old Seagate 500 GB (It has almost 7 years running already and it's starting to make noises) This are their codes and their website.
WD1003FZEX
WD5003AZEX

Thank you very much in advance!!!
 

Robhao

Honorable
Jul 31, 2013
39
0
10,540


Oh damn, looks like my eyes are failing me! Time to go get new glasses!!!! Hahahaha!!

Sorry for wasting your time, and thank you...

EDIT: I just saw I posted the wrong link, this should be it:
http://www.amazon.com/Black-500-Desktop-Hard-Drive/dp/B008968L6M/ref=sr_1_6?ie=UTF8&qid=1406425569&sr=8-6&keywords=wd+caviar+black

WD1002FAEX <- this is its code.

One cost around 75 bucks and the other 160. Both are selling from WD and their original prices are almost 2:1 difference.