Home / LED Components (Korean) / YS31M-424 Mega Sign LED Controller Replacement “ADT_NEW2S3C 1/4 CONV V.3.0 Duty Converter” has been added to your cart. View cart YS31M-424 Mega Sign LED Controller Replacement$299.99 Available on backorder YS31M-424 Mega Sign LED Controller Replacement quantity Add to cart Category: LED Components (Korean) Brand: YJMicro Related products ADSP-400NWT Tri Color LED Sign Remote Control Board $179.00 Add to cart YJMicro YSF42G DGF212G4A-20130V1.1 YSF4G-212A $199.00 Add to cart Tri Color LED Controller Upgrade (Ethernet + Serial + USB Port) $399.00 Add to cart YRF11M Megasign LED Controller $299.99 Add to cart