USB to 2-Port RS-232 Serial (DB9) Adapter (UTS2009B)<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 USB 2.0 and 1.1 </span></li><li><span class="a-list-item"> No IRQ， DMA， I/O Address resources required </span></li><li><span class="a-list-item"> Serial high speed transfer up to 115 Kbps </span></li><li><span class="a-list-item"> RS-232 Automatic handshake mode </span></li><li><span class="a-list-item"> Supports Windows O.S. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/4192UWdFbCL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41L19IZrF%2BL.jpg" noproxy>