(Allwinner H618 @1.5GHZ. – CPU: Allwinner H618 Quad-Core 64bit Cortex-A53;. – Support: 2.4G/5.8G Dual Wifi IEEE802. a/b/g/n) BT4.0. GOOGLE Cast. A: 2GB+16GB+2.4G&5.8GHz Dual Wifi +BT4.0. B: 4GB+32GB+2.4G&5.8GHz Dual Wifi +BT4.0.