This is a 2-pack of new premium compatible MICR Cartridges for Dell 5330dn printers. Each MICR Cartridge is custom built to replace Dell 330-2045 (HW307) toner cartridges. MTI © MICR Cartridges deliver high-quality MICR output and excellent toner yield, at an exceptionally low cost per page. All our products are factory-tested and ISO approved, and guaranteed to perform with Dell Printers. We offer an exclusive 30-day customer satisfaction guarantee and 1-year Manufacturer Warranty. Our dedicated customer care staff is available 9 a.m. to 7 p.m, Monday through Saturday, to answer any questions and provide technical support.