https://www.amazon.com/SFP-RJ45-Copper-Module-Transceiver/dp/B07N2LWH27/ref=mp_s_a_1_13?keywords=10gb+rj45+sfp%2B&qid=1580506804&sprefix=10gb+rj45+&sr=8-13

And the ubiquiti one is 24$, even though ubiquiti doesn’t care which modules you use.

Maybe you can try this, we sell 10GBASE-T on Amazon for only $42.99 and support 1G/2.5G/5G/10G Can be fully compatible with MikroTik

https://www.amazon.com/dp/B07N2LWH27?ref=myi_title_dp&th=1

https://www.amazon.com/gp/product/B07N2LWH27

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You could try that one.. It works in my Aruba CX switches, but unsure about the 1930 since it's not CX based..