The Xerox Versalink C400/C405 Drum Unit Ink Cartridge 4 PK in BK/C/M/Y colors is a high-quality product designed specifically for Xerox printers. This drum unit cartridge comes in a convenient 4-pack and is compatible with the Xerox Phaser 6600 model. With colors such as cyan, yellow, tri-color, magenta, and black, you can print vibrant and professional-looking documents with ease. The Xerox brand ensures reliability and quality, making this drum unit cartridge a dependable choice for your printing needs.