The real GFSK monolithic transceiver chip
Built-in hardware and link layer
Automatic response and automatic retransmission function
Address and CRC check function
Wireless rate: 1 or 2 MBPS
SPI interface rate: 0 ~ 8MBPS
125 optional channels work
Channel switching time is very short, can be used for frequency hopping
Fully compatible with nRF24XX series
I/O can accept 5v level of input