This SuppliesMAX MICR Drum Unit is Designed to be Compatible with the Source Technologies STI-24B1423 and is Guaranteed to Match and Outlast the OEM Version ; Designed for use in the USA ; 30000 Page Yield on 5% Page Coverage Model: SuppliesMAX Source Technologies STI-24B1423 MICR Drum Unit Color: Black Yield: 30000 Pages Machine Compatibility: See overview tab Manufacturer Warranty: 30 DAYS Our compatible toner, inkjet cartridges, ribbons, copier and other supplies are constructed to original OEM specifications. Guaranteed Superior Quality to Meet or Exceed High Priced OEM Products. Product packing may vary but it will not affect quality and warranty.