Canon Remote Shutter Release Cable – R5 & More – Kondor Blue
NiSi Shutter Release Cable C2 for NiSi Bluetooth Shutter Release | NiSi Optics USA
Shutter Interface Cable (3.5 mm)
Pentax Shutter Release Camera Control | Pentax Camera Remote Shutter Control - Camera - Aliexpress
Foto&Tech 2.5mm-C3 Camera Remote Control Shutter Release Cable Cord for Canon EOS 5D Mark IV, 5DS, 5DR, 7D Mark II, 1D X Mark II, 1D, 1DS Mark II, III, Mark III, IV/1DC/1DX/D60/5D/5D