PortKeys LEYE III 4K SDI Portable Electronic Viewfinder with Battery Plate 2.4 Inch LCD 3D LUT EVF Screen Adjustable Diopter - AliExpress
Buy - Portkeys LEYE III (LEYEIII) 2.4 inch EVF monitor - features a 2.4 Inch LCD Screen with 1440×900 Resolution, 8bit Colour Depth, 1100:1 Contrast and 450nit Brightness
PortKeys LEYE Mark III 4K HDMI Electronic Viewfinder 2.4" LCD Screen View Finder | eBay