About a year ago i bought 2 of these drives to put in RAID. 1 of them was DOA so i RMA’d it and sent it back. They returned another drive. i never noticed this until a few days ago when i was upgrading my mobo, cpu and ram. i then realized, physically they are different. (the top cover)
i also noticed in windows that one was WD6401AALS-00L3B2 and one was WD6401AALS-00J7B1
is there any performance difference between these 2 drives? i’d assume one of them is older… probably the -00L3B2, i recived 2 of these and 1 was rma’d and they game me the -00J7B1, which i never even realized until now. duh!
The -00J7B1 looks like this
The -00L3B2 looks like this