When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Color coding is really nothing new--radio component manufacturers started doing it in the 1920s.

DIY cable markers often lack pleasing aesthetics. Manufactured ones come in fewer choices and/or cost a lot. Perler beads come in many colors and you can get 6,000 for under $9, making them a great ...

Just as an Ethernet port can have differently colored lights, the cables themselves can also come in an array of colors. It's tough to know what the colors mean, especially since it depends on the ...