The excellent new features are that CPU upgrades 1.5G, reach 4GB RAM, BlueTooth 5.0, support up to 4 K dual display via 2 HDMI-compatible port, provides you wonderful Visual experience. Supports an extra 500mA of current, ensuring we have a full 1.2A for downstream USB devices, even under heavy CPU load. Particularly, dual-band 2.4/5.0 GHz wireless LAN, Ethernet upgrades to Full-throughput Gigabit, faster than 3B+.