AXIS 291 1U Video Server Rack combines high reliability and functionality with quick, flexible and professional installation. The rack holds up to 3 interchangeable and hot-swappable blades. It is designed for improved serviceability and quick replacement of units. There is no need to power down when installing or changing blades. The rack provides serial communication and I/O connectors at the rear of each slot. It has a single network connection together with integrated power for simple installation.