I chose to dremel.Printed out an Xray of the back and sized it about the size of my SP3, drew some guidelines and used a rotary cutting disc.
I highly recommend doing this in an open area not inside as the metal dust was all over every thing in my room.Once I had the door cutout I took out the old drive and added this, placed the cut out back and cut out a slightly larger rectangle from a label sheet and placed the label over top to hold the door in place and close off the door.Reinstalled Windows 10 Pro from a USB drive and has been up and running for weeks.
However, the product is perfect and working absolutely fine.
This will not work in a standard 2.5 inch laptop disk socket, but if you have an mSATA it's great.
Fast and works great on my dell m4700.
Incredibly high temperature when working!
All the time stops working from overheating.
It can not be used as an external drive or internal without additional strong cooling.
Is not compatible with DELL Model 7LKYX52.