The B040-008-19 NetController 8-port console KVM switch is a cost effective and highly flexible system for controlling multiple computers from a single keyboard, monitor and mouse. Directly connect up to 8 computers, or expand the number of connected computers to up to 248 by daisychaining up to 15 additional B042-Series KVM switches. Switching between connected computers can be accomplished via Push button, On Screen Display (OSD) menu, or Hotkey commands.Connect computers to the KVM using a Tripp Lite P780-Series USB/PS2 Combo KVM cable kit. Cable kits come with both USB and PS/2 connectors, allowing you to connect to either a USB or PS/2 computer without the need to purchase additional cables or adapters.An additional VGA port and USB port are located on the back panel of the unit, allowing for the connection of an external VGA monitor and USB keyboard or mouse, or a Tripp Lite B051-000 IP remote access unit.Password feature provides additional security to prevent unauthorized access to connected computers. Rackmount hardware is included with the unit, and is designed for easy, one person installation. Fits into any rack from 27 to 42 inches deep, and can be installed in a 2-post rack using Tripp Lite's B019-000. Compatible with all major operating systems. Constructed of heavy-duty steel housing.