The Single-Port 10 GbE Network Expansion Card from QNAP features a 5-speed PCIe network card supporting 10GBase-T, 5GBase-T, 2.5GBase-T, 1000Base-T, and 100Base-TX speeds. The RJ45 connector allows you to use a Cat 6 cable for a transmission speed of up to 10 Gb/s. The QXG-10G1T network adapter card utilizes a PCIe 3.0 x4 interface and can be installed in a Windows/Linux PC or a compatible QNAP NAS. It comes pre-installed with a low-profile bracket, while full-height and specialized brackets are included in the package.