A surgical staple cartridge comprising a first, a second and a third row of staple pockets located on a first side of a cartridge housing having staples therein. The first, the second and the third row of staple pockets are aligned parallel to a knife channel. A first staple driver is oriented to drive at least four staples from the staple pockets simultaneously. A second staple driver configured to eject a staple from the staple pockets and is positioned proximally with respect to the first staple driver. The second staple driver is configured to elect a different quantity of staples than the first staple driver.