Need a 'hard-drive cable connector'/'connector latch' for m18x r1

Described as a 'hard-drive cable connector'(3) here:
Documentation

Also described as a 'connector latch' on page 44 of my Alienware manual.

Not exactly a common part everyone asks for but I could do with one, as mine is broken on the side. So the hard drive cable is kind of loose.
Luckily everything runs fine! But I still want to replace the broken connector.

Anyone know of any good places for Alienware...

Need a 'hard-drive cable connector'/'connector latch' for m18x r1