The Atlona AT-OME-CS31-SA-HDBT is an AV presentation and collaboration system for classrooms and conference rooms. It features AV switching of remote and local sources, a mixer amplifier, and USB hub. The switcher has one HDBaseT input supporting extension of HDMI, Ethernet, power, control, and USB 2.0 data up to 330' (100 m) as well as two HDMI inputs. Sources connected to these inputs, such as laptops, computers, and document cameras, are routed to the HDMI output connected to a projector or display. The amplifier of the OME-CS31-SA-HDBT delivers either two channels of 25 watts or a single channel of 50 watts into 4 or 8 ohms. It features one balanced stereo audio input and two unbalanced stereo audio inputs with independent level control for each. A balanced stereo line level output allows the mixed signal to be passed to an assistive listening system or separate amplifier. The OME-CS31-SA-HDBT’s USB system integrates a USB 2.0 host over HDBaseT with a local USB 3.0 host and connections for four peripheral devices such as cameras, speakerphones, interactive displays, keyboards, mice, or storage devices.