The VM-PWR400-A Video Matrix Power Module from Aten is an additional power module for the VM1600 Modular Matrix Switch. A dual power module allows the switch to constantly work without the risk of losing power. If the primary power shuts down, the secondary power supply will automatically take over. The power module is hot-pluggable and can be easily replaced without shutting down the system. There are two different power slots, enabling the module to connect to two different power sources.