All drum units in GREENCYCLE meet the ISO9001 and ISO14001. Shipped from California, USA within 24 hours. Compatible new drum unit unconditionally guaranteed to provide same performance and reliability as genuine Brother cartridge. Yield: drum unit up to 12,000 pages at 5% coverage (Letter size Paper) Actual toner yield varies with usage, graphics printed and environmental conditions. Compatible Brother Printer below:Brother DCP-L2520DW DCP-L2540DW DCP-L2300D DCP-L2500D HL-L2340DW HL-L2360DW HL-L2380DW MFC-L2700DW MFC-L2720DW MFC-L2740DW Series Make your presentations and printouts stand out with this premium-grade drum cartridge that produces crisp, bold, and eye-catching text and graphics that ensure that people stay awake at your next meeting.