This is a Pocket Wizard MH1 16" (40.6 cm) straight Household (twin prong) to Miniphone Cable.
Although the Pocket Wizard system allows you to fire your strobe from your camera without a wire between the two, the receiver still needs a wire connection to your power pack or monolight.
I recently received some old Speedotron strobes. Mostly with noisy or broken fans. So I managed to fix some. My Godox triggers would not work with the Speedotron power banks so I bought Pocket Wizard triggers and the MH1 cables which work perfectly. Since there were three power banks I ended up with one pocket wizard for each unit and can easily switch which ever combination of strobe heads I want. Really happy to be able to make use of these more powerful strobes.
I ordered them, they came on time...and they workded perfectly. 5 stars. Nuff Said.