Inktoneram Compatible Toner Cartridges & Drum Replacement for Brother TN580 TN550 DR520 DR-520 TN-580 TN-550 HL-5240 HL-5250 HL-5250DN HL-5250DNT HL5280 HL-5280DW MFC8460N MFC8660DN (Drum,3-Toner,4PK) This package contains: 4 Inktoneram Replacement toner cartridges & drum to replace Brother DR520 TN580 Toner Cartridges & Drum ( 3 Toner, 1 Drum ). (THIS IS A COMPATIBLE REPLACEMENT PRODUCT ONLY. THIS IS NON-OEM .) To replace Cartridges with part numbers : TN580 TN-580 TN-550 TN550 DR520 DR-520. Page Yield : 7,500 Pages / Toner and 25,000 Pages / Drum at 5% coverage Printer Compatibility: Brother DCP: DCP-8060 DCP-8065 DCP-8065DN, Brother HL: HL-5240 HL-5250 HL-5250DN HL-5250DNT HL-5280 HL-5280DW, Brother MFC: MFC-8460N MFC-8660DN MFC-8670DN MFC-8860DN MFC-8860N MFC-8870WN Warranty: Our Compatible Inktoneram Replacement toner cartridges & drum to replace Brother TN580 DR520 cartridges are manufactured under strict ISO-9001 standards. They are excellent economical alternatives to the high-cost OEM Brother cartridges. These cost-effective toner & drum will provide high quality prints that meet OEM standards and are guaranteed against defect. Our compatible Replacement cartridges to replace Brother TN580 DR520 cartridges come with a 90 day 100% money back guarantee.