A disposable loading unit for use with a surgical instrument, wherein the disposable loading unit comprises: an end effector, comprising: an anvil; an elongate channel; and a staple cartridge removably coupled to the elongate channel, wherein at least one of the anvil and the elongate channel is movable to capture tissue between the anvil and the staple cartridge; and a connector portion extending proximally from the end effector, wherein the connector portion comprises a hollow body defining a longitudinal axis therethrough, and wherein the hollow body comprises: a first engagement portion, comprising: a first connector protruding from the hollow body; and a second connector protruding from the hollow body in a direction away from the first connector; wherein the first connector and the second connector are aligned with each other defining a first axis which intersects and is perpendicular to the longitudinal axis; characterized in that the hollow body further comprises a second engagement portion proximal the first engagement portion and comprising: a third connector protruding from the hollow body; and a fourth connector protruding from the hollow body in a direction away from the third connector; wherein the first engagement portion is longitudinally spaced apart from the second engagement portion; wherein the third connector and the fourth connector are aligned with each other defining a second axis which intersects and is perpendicular to the longitudinal axis; and wherein the first axis is rotationally offset from the second axis, and wherein the connectors (1037, 1038, 1039, 1040) are configured to establish a bayonet connection with the surgical instrument. an end effector, comprising: an anvil; an elongate channel; and a staple cartridge removably coupled to the elongate channel, wherein at least one of the anvil and the elongate channel is movable to capture tissue between the anvil and the staple cartridge; and an anvil; an elongate channel; and a staple cartridge removably coupled to the elongate channel, wherein at least one of the anvil and the elongate channel is movable to capture tissue between the anvil and the staple cartridge; and a connector portion extending proximally from the end effector, wherein the connector portion comprises a hollow body defining a longitudinal axis therethrough, and wherein the hollow body comprises: a first engagement portion, comprising: a first connector protruding from the hollow body; and a second connector protruding from the hollow body in a direction away from the first connector; wherein the first connector and the second connector are aligned with each other defining a first axis which intersects and is perpendicular to the longitudinal axis; characterized in that the hollow body further comprises a second engagement portion proximal the first engagement portion and comprising: a third connector protruding from the hollow body; and a fourth connector protruding from the hollow body in a direction away from the third connector; a first engagement portion, comprising: a first connector protruding from the hollow body; and a second connector protruding from the hollow body in a direction away from the first connector; a first connector protruding from the hollow body; and a second connector protruding from the hollow body in a direction away from the first connector; wherein the first connector and the second connector are aligned with each other defining a first axis which intersects and is perpendicular to the longitudinal axis; characterized in that the hollow body further comprises a second engagement portion proximal the first engagement portion and comprising: a third connector protruding from the hollow body; and a fourth connector protruding from the hollow body in a direction away from the third connector; a third connector protruding from the hollow body; and a fourth connector protruding from the hollow body in a direction away from the third connector; wherein the first engagement portion is longitudinally spaced apart from the second engagement portion; wherein the third connector and the fourth connector are aligned with each other defining a second axis which intersects and is perpendicular to the longitudinal axis; and wherein the first axis is rotationally offset from the second axis, and wherein the connectors (1037, 1038, 1039, 1040) are configured to establish a bayonet connection with the surgical instrument.