Bingfu 4G LTE Antenna Mini Soft Whip TS9 (2-Pack) Compatible with Verizon AT&T T-Mobile Sprint 4G LTE Mobile Hotspot MiFi Router Cellular Broadband Modem USB Modem Dongle Adapter

I'm using these. No adapters needed. They are pretty unobtrusive so I plan to just leave them in place. https://www.amazon.com/dp/B07BQ44CW1?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1