The XPANDMUX ST-MX-xO Switch Expansion Unit is used to combine up to 16
NODEMUX ST-nXm-U Universal Matrix KVM Switches together to create a total
capacity of eight users and 512 computers--all with true non-blocking
matrix switching.
All users can access any computer at any time without interfering with each other. You can add switches as your operation grows instead of replacing them. On Screen Display (OSD) is standard on 4, 8 and 16 port models (not available on 2-port model).