The 4x Brother LC101BK Black Ink Cartridges are genuine/original products manufactured by Brother in the Philippines. These cartridges are compatible with Brother printers and utilize inkjet print technology for high-quality printing. With an expiration date ranging from November 2025 to July 2027, these cartridges are designed to last and ensure reliable performance. Perfect for those looking for genuine Brother ink cartridges that offer consistent and impressive results.