XLR
https://www.google.com/search?q=xlrケーブル&rlz=1CDGOYI_enJP612JP614&hl=en-US&prmd=isvn&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiClsmNj_3iAhW6xosBHSqRDJ8Q_AUoAXoECA4QAQ&biw=414&bih=722