24×2.5 (Among them, 8 U2 are supported). Motherboard comes with its own network card. If the label is a second-hand product, there may be wear and scratches on the appearance. The photos on the link are inventory photos, not actual photos. Please carefully review the detailed information of the actual configuration. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately.