This is a high quality compatible Epson S051104 Photo Conductor Unit compatible with the following printers:Epson Aculaser Printers:Epson Aculaser C1100, Epson Aculaser C1100dn, Epson Aculaser C1100n, Epson Aculaser CX11N, Epson Aculaser CX11NF, Epson Aculaser CX11NFC, Epson Aculaser CX21N, Epson Aculaser CX21NC, Epson Aculaser CX21NF This Drum Unit has a yield of 42000Using a compatible gives you excellent printout quality without the high prices!Images used are for illustration purposes only.