Brother Genuine DR810CL Drum Unit delivers professional color laser output with an approximate 100,000-page yield. Approximate yield based on three pages per job (letter\/A4 single-sided pages). The number of pages may be affected by a variety of factors including but not limited to media type and media size. All Brother Genuine Supplies are designed as part of a complete printing system to provide superior quality and reliability. Use only Brother Genuine drums for reliable, business quality results.