There is wdr7500 v3 on sell in WWW. JD.COM,Anyone knows that v3=archer c7 v2? Mine is v1 ,it can't support 5g with ath10k linux driver.
Maybe, or maybe not.
There are some very minor differences between wdr7500 v2 and c7 v1. Specifically, they source different brands of flash and ram. The 7500v2 has cFeon flash (vs Winbond on c7v1) and Hynix ram (vs Winbond on c7v1). There really is no telling what else they might source differently on foreign devices.
Though we can reasonably GUESS that the wdr7500v3 is likely to be almost the same as c7v2, there is no way to actually tell without more information about it, or someone actually buying one.
There may also be a tell in the factory firmware, the presence of which would almost guarantee that they are the same. If it is missing the tell, it does NOT mean that they are necessarily different however.
If you can find the factory firmware and look at the 4 bytes starting at address 0x40, it contains the model and hardware version of the matching device. Archer c7v2 contains the values "c7000002".
c7v1 had the value 75000001. Note the "7500" matching the wdr7500.
My gut tells me that the wdr7500v3 will *probably* have "75000003", which is, of course, inconclusive.
If you can find/provide more information about the device, it would be helpful in identifying it better. I would look myself, but I can't read Chinese.