This is a compatible Toshiba T1640 black toner cartridge designed for use with Toshiba E-Studio 163, 165, and 205 laser printers. It delivers a standard yield of up to 8,000 pages, providing an economical alternative to original Toshiba cartridges. Manufactured 100% brand new, this cartridge ensures reliable performance and high-quality printing results. The use of compatible cartridges does not void your printer's warranty. Backed by our 100% Quality Satisfaction Guarantee.