Electronic device, contactor, and electronic device system

A contactor configured to supply power, the contactor comprising:

• a connecting core configured to have a rod-shape;
• a pin front end portion configured to cover the connecting core from a first end of the connecting core, and include a first protruded portion having a slit, the first protruded portion being provided on a side opposite to the first end;
• and
• a pin rear end portion configured to cover the connecting core from a second end of the connecting core, and include a second protruded portion having a slit, the second protruded portion being provided on a side opposite to the second end,
• wherein protruded portions of the first protruded portion and the second protruded portion protrude at predetermined positions in a longitudinal direction of the connecting core in a direction orthogonal to the longitudinal direction.

An electronic device system comprising:

• a rack configured to provide a plurality of contactors to supply power;
• and
• a plurality of electronic devices each configured to be mounted on the rack, and include a terminal configured to receive power and be provided on a back surface side of the electronic device, the terminal including
• a hole portion into which a contactor of the plurality of contactors is inserted, configured to include
• a first connection portion configured to be provided on the back surface side of the electronic device and include an inner circumferential surface having a female screw groove shape, and
• a second connection portion configured to be provided on an inner side of the first connection portion, and include an inner diameter smaller than an inner diameter of the first connection portion and an inner circumferential surface to be fitted to the contactor.