apg slotThis MICROSAPG Model 1816 Cash Drawer features sturdy steel, durable plastics and a resilient powder coated painted finish. The Heavy Duty latch mechanism isAGP 2X chipsets come with 3.3V slots, AGP 8x chipsets come with 1.5V slots, and some AGP 4x chipsets come with AGP Universal slots. 3.3V slots use the front key notch,