Expandable storage support

Real-time content update box — Wanlin AndroidSBC, 12-year Chinese digital signage box and Android media player manufacturer, WL-SB600 (Outdoor Waterproof IP65 Signage Box Motherboard) certified CE/FCC/RoHS. RK3568 + IP65 Waterproof + 2500 nits + 4G LTE + Wide Temperature -20~70C + Anti-Vibration . MOQ from 50 units, OEM/ODM from 500 units, 15-20 day deliver···