This is a genuine magenta toner cartridge for Lexmark Optra SC1275. Its capacity is 3500 pages on A4 page format at 5% coverage.Compatible Printers: Lexmark Optra SC 1275 Series, Lexmark Optra SC 1275, Lexmark Optra SC 1200 Series, Lexmark Optra SC 1275 N SOL, Lexmark Optra SC 1275 N, Lexmark 5040-001, Lexmark Optra SC 1275 C, Lexmark Optra SC 4050, Lexmark Optra SC 1275 M