I'll chime in here, EVERY single time you purchase something via CC on Alibaba FROM THE US, you put your CC at risk. Over the last 2 years, I've made 2 purchases on there, and twice my CC was stolen and used elsewhere (both times in Chicago, I'm in NY) within 1 hour. You have to cancel it, get a new one sent, update any accounts that use it.... it's a PITA.
I will no longer order from that site. I'm wondering if there is a reliable ebay or Amazon seller we can purchase the proper NanoVNA-H from, and not get a bad clone (which I just received via ebay)??
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Regards,
Chris
Chris K2STP