This Original Samsung R407 (CLT-R407/SEE) Four colour Imaging Drum Unit kit is a vital tool in maintaining the clean, high quality prints you`ve come to expect from Original Samsung products. The Genuine CLT-R407/SEE Drum Unit is designed to be changed after roughly 24,000 pages for the Black and 6000 pages for the colours (based on a 5% coverage) making this Original Drum ideal for use in the busy office.The purpose of this Original Samsung Four colour R407 Imaging Drum Unit is to take the Toner powder from the Cartridges, to then place accurately onto the page. This Original CLT-R407 is designed to be compatible with a range of Samsung Printers, a complete list of compatible Printers can be found on this page.