Firecuda 530 flux or conformal coating? Weird residue

[qbazdz]

Hi all,

I've never come across this before on other NVMEs, and its the first Firecuda 530 drive Ive got here.
Searching on google didnt bring up good enough images to compare, so I hope someone with a drive can comment.
I seem to have some flux or conformal coating locally on the drive as per images - not even quite sure if that is actually what I think it is.
Its a brand new drive and I haven't plugged it in yet to check if all works ok.

Would welcome input if you came across this before.

Thanks

 

[qbazdz]

It seems very localised, and solder still present
The drive seems to be absolutely fine, but it was an open box item so I didnt know if this wasn't the reason for the return.

 

[qbazdz]

I tried - didn't really find anything from the same angle or close enough to see.
Drive tested all ok, IOPS are through the roof on this thing so I'm definitely keeping it.