The UTC55 bring all in a stylish new smaller chassis (just 1 inch tall and 4.5 inches square) that takes absolutely no desktop space at all when mounted to the back of a monitor. We even include the mounting bracket at no charge. Of course, UTC55 include VGA support (resolutions up to 1280x1024), an Ethernet connection, PS/2 keyboard and mouse ports, audio output, and power cable connections. The UTC55 does not have the USB port or microphone input and is recommended for the ultimate in economy and security.