This is a GENERIC BRAND COMPATIBLE FOR XEROX WORKCENTRE PRO 416 AND WORKCENTRE PRO 421 SERIES OEM #: Xerox: 106R445 Description: TONER CARTRIDGE-BLACK (2 X 335G) TOTAL QTY: 2 PCS Models: Xerox: WORKCENTRE PRO 416, WORKCENTRE PRO 421