According to this tweet (https://twitter.com/rioriost/status/1511664649305202690/retweets/with_comments) and one post in Amazon.jp, the TP-Link UB500 adapter uses the same MAC address so you can't install two devices in the same network. I didn't find any source for this in English.
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TP-Link UB500 always uses the same MAC address | Heykuki News