This is a compatible replacement for the Samsung MLT-D108S black laser toner cartridge, designed to perform with your Samsung ML-1640 or ML-2240 laser printer. It delivers a standard yield of up to 1,500 pages, making it an economical alternative to expensive OEM cartridges. Manufactured brand new, these compatible cartridges provide reliable performance and high-quality printing results. The use of compatible toner cartridges does not void your printer's warranty, and we back this product with a 100% Quality Satisfaction Guarantee.