The Brother DR221-CL CMY Drum Unit is a genuine original print technology for laser printers that includes cyan, yellow, magenta, and black colors. It is compatible with various Brother printer models such as MFC-9330CDW, HL-3140CW, HL-3170CDW, MFC-9130CW, and HL-3180CDW. The drum unit is designed for long-lasting and high-quality printing performance. It also includes a California Prop 65 Warning due to its potentially harmful components. Brother is a trusted brand that ensures reliable and efficient printing results.