used or new doesn't matter, do not need caps, no preference on branding either
prefer original box though
buying:
1x QFR w/ mx red
1x QFR w/ mx green
1x QFR w/ mx black
QFR PCB without switches
QFR bottom case (together with the pcb preferably)
QFR top cover
1x white filco 104 TK w/ mx brown.