Fargo DTC 045210 Color Ribbon YMCKOK YMCKOK Ribbon Cartridge w/Cleaning Roller: Full-Color Ribbon with Two Resin Black and a Clear Overlay Panel – 500 Images, for the Fargo DTC4500 printer This ribbon will print 500 cards with color on one side and black only on the back. A YMCKOK ribbon will only print 250 dual sided cards, if color is printed on the back side of the card. If you wish to print color on the both the front and back of the cards, look for a YMCKO ribbon for the DTC4500, such as the Fargo 045200 ribbon. This is a YMCKOK ribbon, which means it has a Yellow panel, Magenta panel, Cyan panel, Resin Black panel, clear overlay panel, a second Resin Black panel and then starts again with the Yellow panel. Easy Badges only sell Genuine HID Fargo Product. Beware that counterfeits may damage the printer and will void the warranty.