Brad Chacos/IDG The principle behind using a single PCIe cable for a graphics card ... power supply are robust. Aftermarket cables may not be as well-made. Good ones rely on thicker-gauge wire ...

My desire to power up a laptop with an external graphics card began in 2015 ... pin power connector, from a PC power supply. PCIe adapter/board: This is a small circuit board with a PCIe slot ...

Read: How to test the Power Supply Unit (PSU) of your computer. It’s worth noting that not all graphics cards require an external power source. Some older and lower-end graphics cards can draw ...