MMCX-LR-PC-1(40): Hirose MMCX Right-Angle Receptacle, 50 Ohm, 6 GHz
It is the board-mount half of a snap-on MMCX interconnect, rated to 6 GHz with a gold-plated brass body and a beryllium copper centre contact plated in gold.
The 6 GHz maximum frequency covers the 2.4 GHz and 5 GHz Wi-Fi bands, plus sub-6 GHz 5G NR and LTE, but stops short of mmWave bands above 6 GHz. For a board-edge launch, the right-angle orientation keeps the signal path perpendicular to the PCB, which simplifies trace routing to the centre pin but adds a small impedance bump at the bend; the PTFE dielectric helps control that transition.
The snap-on fastening engages with a positive click — no threading, no torque tool — and the 500-cycle rating means the retention spring will hold up through repeated field swaps without losing its grip.