Which USB to RS232 converter please?

Greetings all.
I've now bought FOUR different USB to RS232 adapters so I can update the firmware on my TS MPPT-60-150's and so far NONE of them have worked. All that's available in my part of the world is cheap Chinese crap.
So, I need to order off Amazon.
Please could someone let me know which model USB-RS232 converter actually works with the TS-MPPT-60-150 so I can order it and get my firmware upgraded. It's driving me nuts!
Thanks in advance for the help.
Dave
Comments
https://www.solar-electric.com/morningstar-umc-1-usb-meterbus-adapter.html
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
Thanks for replying but I'm not sure that will work. Morningstar MPPT-60's can only have their firmware upgraded through the serial / RS232 port.
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
Thank you very much for the info Mike :-)
Thank you, it is helpful :-)
Page 12 is USB-Serial
It has been reported that some USB to Serial adapters will not
work with either the MSC or our controllers.
This is usually due to the adapter output voltage being below the
RS-232 electrical specification. Section 11.0 Troubleshooting explains this further.
Recommended: Tripp Lite USB / Serial DB-9 Adapter: Tripp Lite U209-000-R
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister ,