2x Eurotone Eco Cartridge for HP Laserjet Pro M-521-dn M-521-dw M-521-dx
HP Laserjet Pro M Series M 521 / M 521 DN / M 521 DW / M 521 DX / M 521 DZ. HP Laserjet Enterprise 500 MFP M Series MFP M 525 / MFP M 525 DN / MFP M 525 F. HP Laserjet Enterprise P Series P 3015 / P 3015 D / P 3015 DN / P 3015 N / P 3015 X.