Summary: This PrinterDash High Yield Toner Cartridge is Designed to be Compatible with the CTGX657 and is Guaranteed to Match and Outlast the OEM Version ; Designed for use in the USA ; 18000 Page Yield on 5% Page Coverage Works In Xerox Phaser 4500 / Tektronix Phaser 4500 Series and Other Laser Printers 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. Our Products are manufactured with new and recycled components and air-sealed in an ISO-9001, ISO-9002, ISO-14001 quality certified factory. Our Products are Engineered and Manufactured for use in 110V machines in the North America. The use of our supplies does not void your machines warranty. DISCLAIMER:Manufacturer Brand Names, Reference Part Numbers and Logos are registered trademarks of their respective owners. Any and all brand name designations or references are made solely for purposes of demonstrating compatibility. ; Pictures are used as Reference. ; Products are based on Description. Part Numbers Labeled are internal part numbers and may not match MFG SKU ; All Products are Sold in Retail Boxing. Retail Boxing is subject to change. Description:PrinterDash Remanufactured Brand Toner Cartridge (18000 Page Yield) for Tektronix Phaser 4500 / Tektronix Phaser 4500B / Tektronix Phaser 4500DT / Tektronix Phaser 4500DX / Tektronix Phaser 4500N / Xerox Phaser 4500 / Xerox Phaser 4500B / Xerox Phaser 4500DT / Xerox Phaser 4500DX / Xerox Phaser 4500N