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I understand what you're saying, but a PCIE device has pins on both side of the PCB, which makes things considerably harder since you'd have to use two cables like you're referring to. I think it might work, if done with two cables, but it'd be a one time insertion as you'd probably deform pins in the PCIE socket too far that they wouldn't do proper contact with a regular PCIE device PCB after.After that, we don't even know if it would work.
I understand what you're saying, but a PCIE device has pins on both side of the PCB, which makes things considerably harder since you'd have to use two cables like you're referring to. I think it might work, if done with two cables, but it'd be a one time insertion as you'd probably deform pins in the PCIE socket too far that they wouldn't do proper contact with a regular PCIE device PCB after.
After that, we don't even know if it would work.