Asus Zenfone 4 Max Pro ZC554KL official Pictures. Asus Zenfone 4 Max Pro ZC554KL is a Smartphone of asus. The Asus Zenfone 4 Max Pro ZC554KL Android Smartphone. Announced Aug 2017. Features 5.5″ Display, Snapdragon 425 Chipset, Dual: 16 MP Primary Camera, 16 MP Front Camera, 5000 MAh Battery, 32 GB Storage, 3 GB RAM. Asus Zenfone 4 Max Pro ZC554KL price starts.