Do it Wiser Remanufactured Extra High Yield Toner Cartridges Replacement for HP 507X LaserJet 500 Color M551 Series 4-Pack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Compatible with Part Number: CE400X CE401A  CE402A CE403A </span></li><li><span class="a-list-item"> Compatible with printers HP M551n M551dn M551xh M570dw M570dn M575c M575dn M575f </span></li><li><span class="a-list-item"> Our Do it Wiser smart toner cartridges are covered by a 1 year warranty against defects </span></li><li><span class="a-list-item"> Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free </span></li><li><span class="a-list-item"> Estimated page yield: Black 11000 pages and colors 6000 pages (depends on printer and usage) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51YqnW-DEkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41tjy-Pl%2BrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41vQbUWB-6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41scONPfmzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uNtVYUM5L.jpg" noproxy>