Difference for HLK-7688A and HLK-7628N Openwrt 2.4G wifi router module

For both module, it is 2.4G wifi router module, openwrt version, support sdk to develop.
7688A: MediaTek MT7688AN chipset, 1 IPEX, 150Mbps
7628N: MediaTek MT7628NN chipset , 2 IPEX, 300Mbps
Both default is 128M RAM and 32M Flash
With interface SPI, I2C, PWM, GPIO, UART
Same firmware, same function
7628N a little larger than 7688A
More please contact me for data sheet