Overview The Tripp Lite NetCommander USB Server Interface Unit (SIU) connects to the HD15 port and USB port on a computer/server, and converts them to a single RJ45 connector. Ordinary Cat5e patch cables can then be used to connect the server to the switch ports on a Tripp Lite B070-008-19, B070-016-19, B072-008-1, B072-008-1A, B072-016-1 or B072-016-1A NetCommander Cat5 KVM switch. Use of Cat5e cables frees up space in the installation that would ordinarily be filled by traditional, thicker KVM cables.