What's In The Box:2 x Brother INKvestment LC406BK Standard-yield Ink cartridges Black --- Brother INKvestment LC406BK Standard-yield Ink Cartridge, Black. Product Description. The Brother LC406BKS is a standard-yield black ink cartridge designed for use with Brother INKvestment Tank printers. Delivering up to 3,000 pages‡ of sharp, professional-quality black prints, this cartridge is perfect for everyday business or home office use. Its front-loading, plug-in design ensures quick and mess-free installation, while the genuine Brother ink formula guarantees consistent and reliable performance. It’s also eligible for Brother’s recycling program, offering an eco-conscious printing solution. Product Features. The Brother LC406BKS is a standard-yield black ink cartridge designed for use with Brother INKvestment Tank printers. Delivering up to 3,000 pages‡ of sharp, professional-quality black prints, this cartridge is perfect for everyday business or home office use. Its front-loading, plug-in design ensures quick and mess-free installation, while the genuine Brother ink formula guarantees consistent and reliable performance. It’s also eligible for Brother’s recycling program, offering an eco-conscious printing solution.