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 OKI brand print quality, page yield, and reliability
• 2-year warranty with 100% performance guarantee
• Compatible Hardware: OKI B411D, B411DN, B431D, B431DN MB461, MB471, MB471W, MB491
• Page Yield: 4000 | Color: Black