HP 741727-001 Smart AC power adapter (45 watt) - 4.5mm barrel connector， non-power factor correcting (NPFC) - Requires 3-wire AC power cord with C5 connector<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"> Output: 19.5V </span></li><li><span class="a-list-item"> Power: 45W / 2.37A </span></li><li><span class="a-list-item"> Power cord included in delivery </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41EUAPQiALL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-23CFbIQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41jVmbLi1ZL.jpg" noproxy>