This is a genuine and original Lexmark waste toner bottle with model number C540X75G. It is compatible with a range of Lexmark printers including X548, CS310, CV540, X544, X546, CX310, CX410, X543, CX510, XS548, CS410, CV546, CS510, C2132, XS544, XC2130, XV544, XC2132, C540, C546, C544, and C543. This waste toner bottle is ideal for those who are looking for a reliable and durable solution to their printing needs.