Feifei's K 1S and K2 are MediaTek MT7620A processors with a main frequency of 580MHz；; 8 MB of flash memory (SPIROM) and 64MB of running memory. The main differences are power supply, peripheral power amplifier and so on. The signal of K2 is better.
Feifei has purchased four routers from 0 yuan for free, which are K 1, K2, K 1S and K2C according to the time of listing. K2C and K 1S, I didn't find the difference. Except for the lack of a LAN port, the heat dissipation is not as good as k1s. K 1S CPU has heat sinks, and there are not as many lamps as K 1S, and there are nine in a dozen. The 5G power amplifier chips are all SKY2 1 85747. And K2' s motherboard looks much better, with four more capacitors than theirs. Much more powerful. Feifei K 1, K2, K 1S, K2C, all CPU chips used are MT7620A, and there are many firmware to play with. The capacity of memory and flash memory is the same, so the brushing method is similar. K2C and K2 are similar in appearance, except for the obvious color. But the inner difference is big.