The file 'Improved PCI-E Riser Lock 3D Printer Model' is (f3d,stl) file type, size is 121.6KB.
I had a hard time printing the original, so I redesigned it in Fusion 360 (file included if you want to make further modifications).
Angled the top part of the clip so it can print properly without supports. It's now a 35 degree overhang instead of 90.
Angled the bottom clip so it forms a bit of a ramp, making it easier to clip to the socket.
pcie_riser_lock.f3d | 122.2KB | |
pcie_riser_lock.stl | 5.2KB |