Simultaneous reader missing parts

I’m piecing together a SparkFun simultaneous RFID reader setup and keep realizing I’m missing one more part each time—so I’ve had to place a new order each time. Would be nice if this was sold as a bundle.

I have the reader module, antenna, and cables—now I’m told I need a jumper board. Can someone confirm which board I need, and the minimum parts required to get it running with the antenna?

Thanks

I’m not familiar with the erm ‘jumper’ board, but you just need an MCU with an arduino footprint (or even just wire something like an esp32 to it directly) Introduction - SparkFun Simultaneous RFID Reader - M7E Hookup Guide