“I use this between an SMPS wall wart and my Chord Qutest DAC. The Qutest doesn't have an on/off switch, and this cable does a very good job of saving me from having to unplug the DAC every time I want to turn it off or change its output voltage: we all know how delicate micro USB plugs can be!”
Hi Pat. You have purchased this Micro-USB switch which is for the Pi Zero/Pi3. We do not advertise that it is compatible with the Raspberry Pi 4 (because the Pi 4 uses USB-C) so there may be some confusion here.
If you can get in touch with our support staff via support.thepihut.com, they will give you instructions for a return for a refund, allowing you to grab the USB-C Pi4 version instead: https://thepihut.com/products/usb-c-cable-with-switch
Thanks