IN THE BOX – Ampro Compatible Replacement 147A MICR toner cartridge. CERTIFIED MICR: This cartridge contains Ampro CERTIFIED MICR toner. NEW CHIP: The new chip guarantees this cartridge will work seamlessly in your printer while monitoring page counts. BANK COMPLIANT - Compliant with US & North America Banking Systems. HIGH YIELD—Based on the industry-standard 5% coverage, our high-yield cartridges will produce 10,500 single checks or 31,500 business checks at 3 per page. THIS CARTRIDGE WORKS WITH: HP M634h, M635z, M636z; M610dn, M611dn, M611x, M612dn, M612x; MFP M634z, M635fht, M635h, M636fh. TRUSTED 2-YEAR GUARANTEE– Backed by 25 years of industry experience, Ampro replacement toner cartridges come with responsive U.S.-based customer service and a lifetime guarantee for quality. Ampro Office Products LLC has over 25 years of experience with MICR toner cartridges.