The OKI Type 9 (43502301) Black Toner Cartridge is a high-quality printing solution designed specifically for OKI Data printers. With a standard print technology of laser, this toner cartridge ensures crisp and professional black prints. Compatible with various OKI models such as B4400n, B4550n, and B4600, this cartridge is a reliable choice for businesses and individuals looking to maintain consistent and high-quality print outputs. At a height of 2.19 inches, this durable and efficient toner cartridge is a valuable addition to any printing setup.