This is a ORIGINAL OEM XEROX WORKCENTRE PRO 423 428 TONER CARTRIDGE OEM PART # 113R00634 Chip: YES Compatible with Samsung Printer/Fax: WORKCENTRE PRO 423 428 BRAND NEW ORIGINAL MADE BY XEROX Our cartridges shall meet or exceed the OEM page yield. Yields: 28 800 pages at 5% coverage 100% ORIGINAL