4 HDMI output signage player -- Wanlin AndroidSBC, 12-year Chinese video wall Android motherboard and multi-screen signage player manufacturer, WL-VW800 (4G LTE Cloud-Managed Video Wall Player Box) certified CE/FCC/RoHS. RK3568 + 4G LTE Module + Cloud CMS + Remote Management + OTA + 4x HDMI Output + 4K@60fps +. MOQ from 50 units, OEM/ODM from 500 units, 15-2···