R&D Computers offers a broad product selection of compatible monochrome laser printer cartridges at competitive prices. R&D Computers cartridges are developed to meet Original Equipment Manufacturer (OEM) quality and performance and are 100% guaranteed.

• R&D Computers printer cartridges are designed to meet or exceed Lexmark brand print quality, page yield, and reliability
• 2-year warranty with 100% performance guarantee
• Compatible Hardware: Lexmark MS521DN, MS621DN, MS622DE MX521ADE, MX521DE, MX522ADHE, MX622ADE, MX622ADHE
• Page Yield: 25000 | Color: Black