openGear® 3.0 is the evolution of the industry's first and only open hardware and software platform. The next generation openGear® frame, OG3-FR combines function, flexibility and power with advanced features like high powered 450 watt redundant power supplies, Gigabit Ethernet access to every card slot, 20 openGear® card slots, dedicated 21st and 22nd card slots for network control and internal reference distribution, and a front LCD display for easy frame, IP address and fault identification. The frame has been designed with an advanced cooling architecture with increased ventilation. Front door mounted cooling fans provide forced air cooling to all cards with front to back cooling. An intelligent fan controller adjusts fan speed with changes in power supply loading and temperature. The front door assembly can be removed without tools for quick and easy maintenance.