Any port used frequently will wear out - they have limited life spans due to the moving parts. I see it with my external display ports pretty frequently.
One potential solution is a USB hub, or even a USB extension cable you keep plugged in.
Or use Duo's mobile app which has no mechanical parts!
Thats not U2F though right?
No.
The reason people use u2f keys is because they can't be cloned and the key can't be extracted. I too like and use TOTP (with Authy), but it really can't beat specialized hardware.
I agree entirely. However I'm willing to trade off convenience on this.
Yubikey NEO NFC!
My main issue with neo is that it doesn't have 4096 bit pgp support, unlike yubikey 4 and 4 nano.
I seem to remember reading that NASA would use short sacrificial extension cables so that ground tests would certify the jacks they'd be flying but not wear them out.