Neutrik XLR 3P chassis connector female [NC3FD-L-BAG-1].
XLR Panel-mount female receptacle 3 Poles P Soldering Connection
Type XLR DL-series, 3-pole, female.
Black metall housing, silver contacts.
Size housing outside: W=26mm H=31mm.
Diagonal bore.
Very robust with good klick-locking.