Developing cartridge

A developing cartridge comprising:

• a housing configured to accommodate toner therein;
• a developing roller rotatable about a developing axis extending in a first direction;
• a memory having an electrical contact surface positioned at one end of the housing in the first direction;
• a holder holding the electrical contact surface, the holder being movable relative to the housing;
• and
• a cover attached to the one end of the housing in the first direction,
• wherein the housing includes a first boss extending in the first direction toward the cover, the first boss having a screw fastened thereto to attach the cover to the housing,
• wherein the holder includes a hole extending in the first direction, and
• wherein the holder is movable relative to the housing in a direction intersecting the first direction in a state where the first boss is inserted into the hole.