The KVM switch supports v.90 modems at 57.6 kbits/s full-duplex connected to the modem port. When using a modem-based connection, you can launch a Video Viewer to a server but Virtual Media will not be available. When launched, the Video Viewer displays the server image in grayscale at a resolution of 640x480 pixels to optimize responsiveness to mouse movements by the user. You can not initiate a scan of multiple servers or initiate firmware upgrade with a modem-based connection.