Easiest way to MIDI sync OPZ to an MPC2500 without computer

Wondering what the easiest way to sync the OPZ to an MPC2500 without using a computer would be. Only MIDI data I need shared is tempo sync, unfortunately this seems way more complicated than I initially thought it would be.

Looks like the OPlab obviously covers this, but was hoping to avoid having to spend so much as well as leave the space open for (hopefully) future modules.

Thanks for any help.

I use a cheap USB to Midi cable and an USB A to C adapter. Works great.

Roland UM 1

Aukey USB Adatper