Review on SmartFly Info Rock Pi 4B RK3399: Comprehensive Single Board Computer Kit with LPDDR4 4GB, Dualband 2, 4/5GHz WLAN/Bluetooth 5.0 by Christopher Kanter

While the board is powerful, there can be issues with cooling - the CPU is down-facing, and the included heatsink just doesn't cut the mustard under load, making it a bit impractical in typical cases. Many Linux distributions were also not loaded correctly on the manufacturer's website when they were purchased. This is definitely a development board that needs some extra "tweaking" to be popular.