![A computer tower needing an external power supply. There is nothing behind the power supply A computer tower needing an external power supply. There is nothing behind the power supply](https://preview.redd.it/lbrgeb5r4su51.jpg?width=640&crop=smart&auto=webp&s=2db722c8cbf3ab3ce762cff2133bfb55fb79051d)
A computer tower needing an external power supply. There is nothing behind the power supply "cutout". Basically a laptop motherboard in a case. Also, the card slots aren't removable. : r/techsupportgore
![Amazon.com: SMAKN Premium External Power Supply 3v 1A AC/DC Adapter, Plug Tip: 3.5mm x 1.35mm : Electronics Amazon.com: SMAKN Premium External Power Supply 3v 1A AC/DC Adapter, Plug Tip: 3.5mm x 1.35mm : Electronics](https://m.media-amazon.com/images/I/71EDEWZDH3L.jpg)
Amazon.com: SMAKN Premium External Power Supply 3v 1A AC/DC Adapter, Plug Tip: 3.5mm x 1.35mm : Electronics
![Phobya external PSU 230V to 4Pin Molex 70W including Euro/UK plug | 230V accessories | Accessories | Water cooling | Aquatuning USA Phobya external PSU 230V to 4Pin Molex 70W including Euro/UK plug | 230V accessories | Accessories | Water cooling | Aquatuning USA](https://www.aquatuning.us/media/image/e6/8a/aa/1013048_1280x1280.jpg)
Phobya external PSU 230V to 4Pin Molex 70W including Euro/UK plug | 230V accessories | Accessories | Water cooling | Aquatuning USA
![RPI USB-C POWER SUPPLY BLACK EU Raspberry Pi | Power Supplies - External/Internal (Off-Board) | DigiKey RPI USB-C POWER SUPPLY BLACK EU Raspberry Pi | Power Supplies - External/Internal (Off-Board) | DigiKey](https://media.digikey.com/Photos/Raspberry%20Pi/MFG_RPI%20USB-C%20POWER%20SUPPLY%20BLACK%20EU.jpg)