Axon Synapse 1u SDI Aspect Ratio Converter Frame4x ARC20 SDI aspect Ratio Cards1u Frame with power supplypal and ntsc formatbuilt in lcd controller at front of frame when front panel is pulled down to control each cardhttps://www.axon.tv/EN/products/3-interfacing-and-conversion/43-aspect-ratio-converters/78-arc20-high-end-bi-directional-aspect-ratio-converter-with-digital-and-analog-outputsRear connectors on each card include1x SDI bnc input1x SDI reclocked output (bnc)2x SDI bnc processed outputs (with arc conversion)3x bnc for RGB / YUV (1x can be used for composite also)1x 9pin port for GPI i/o