MX-FR33R: 33x33 digital crosspoint router frame with redundant power supplies. Built-in control panel and MX-CPU2, control over RS-232 and multiple IP connections. No I/O boards. 4 X MX-DVI-4K-IB: 8 channel HDMI1.4 deep color input board with DVI connector. All 3D formats and 4K / UHD ( 30Hz RGB 4:4:4 , 60Hz YCbCr 4:2:0) are supported, HDCP compliance. Advanced EDID Management and Frame Detector, Pixel Accurate Reclocking. 4 X MX-DVI-4K-OB: 8 channel HDMI1.4 deep color output board with DVI connector. All 3D formats and 4K / UHD ( 30Hz RGB 4:4:4 , 60Hz YCbCr 4:2:0) are supported, HDCP compliance. Advanced EDID Management and Frame Detector, Pixel Accurate Reclocking Used only Once . in Perfect Condition as good as new