This is compatible drum unit for Dell OEM part #593-BBKE. The page yield of this Dell drum unit is 12,000 pages based on 5% page coverage. This drum unit is made of high quality standards and is guaranteed to meet or exceed OEM specifications. Toner Booth provides 100% guarantee all of its compatible cartridges and re-manufactured cartridges. You will also receive free shipping on all US order over $50.