Good morning,
I'm writing from Italy, I own a new Aspire E5-575G-51GB and I found this thread looking for information about the thickness of the DVD player because I would like to replace the player with a secondary HDD (I already have a SDD and I don't want to buy an M.2 one) and I need to buy the right frame but I don't find any info if it's 9mm, 9.5mm or 12.7mm.
Reading this thread I just suppose it's 9mm but the model is not extact the same and I want to be sure. 
The italian support (also the technical one) didn't tell me nothing useful, so I try this forum that seems me better.
Another question, to extract the drive e refix the frame I only need to remove the screw near the driver or all the bottom cover?
regards