Kramer DTAxrD2-OUT2-F34 is a two-channel, 4K@60Hz (4:4:4), DSC, HDMI, analog audio, bidirectional RS-232, Ethernet, & IR over HDBaseT twisted pair transmitter card for compatible Kramer Modular Multi-Format Digital Matrix Switchers like the KR-VS-34FD (sold separately). DTAxrD2-OUT2-F34 outputs two extended-reach HDBaseT signals with selectable embedded/de-embedded analog audio, bidirectional RS-232, IR, and Ethernet from the chassis to the line.