If you want to mount this bracket angle and parallel, you should not have 2 left hands. My mount fits perfectly! If possible, I recommend noted on the table for mounting the table. The overhead work (groan !!) then omitted. I'm going to get me a plastic plate that I will push down between the PC and mount. Have now a second bracket in half the time installed. Attention: Less suitable for PC screwdriver. The housing can be side opened only if one expands the PC completely. Conclusion: Good support for the PC!