HP C7846A C3913A Q1887A C9680A 64MB Memory Upgrade 4 HP Laserjet 4000， 4000N， 4000se， 4000t， 4000tn， 4050， 4050n， 4050SE， 4050T， 4050TN， 4050USB-Mac， 5000， 5000DN， 5000GN， 5000LE， 5000N， 5000T<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"> One 64MB PC100 100-pin sodimm </span></li><li><span class="a-list-item"> Part#: C7846A， C3913A， Q7708A </span></li><li><span class="a-list-item"> 100% compatible with lifetime replacement warranty </span></li><li><span class="a-list-item"> Manufactured by Keystron， LLC </span></li><li><span class="a-list-item"> Keystron is a registered trademark of Keystron， LLC </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/411ELjJhz8L.jpg" noproxy>