Genuine DELL 4-Pack: 1x 4,000-Page Black / 3x 2,000-Page Cyan / Magenta / Yellow Toner for Dell 3000cn, 3100cn Color Printer BCMY30C, 310-5726, 310-5739, 310-5738, 310-5737 (K5362, G7028, G7029, G7030) This product is by Dell Computers