Androidsbc - China source manufacturer for RK3588 quad-screen independent display. Featured model AD-RK3588-ELV (Elevator & Building Advertising Board): Rockchip RK3588, 8nm, 4x Cortex-A76 @2.4GHz + 4x Cortex-A55 @1.8GHz; 4GB LPDDR4 onboard; HDMI 2.0 1080p/4K + LVDS (budget elevator panel); 4G LTE standard, BT 5.2, GbE; -10 to +65 deg C (extended commercial)···