I have several boxes of orphaned AC adapters, at least I think they are orphaned. Many of the AC adapters that come with computer or electronic accessories are not marked with any identifying marks that indicate to what product they belong. Most manufacturers purchase AC adapters for their products off-the-shelf, so even the manufacturers name of the adapter does not help identify the device with which it belongs.
I have tried several solutions to this device/adapter linking problem. First, I tried putting labels on the adapters and writing the device on the label. Just a month or two later the label would come off, mostly due to the heat of the adapter.
Well my most recent solution seems to work pretty well. I found an Artline Paint Marker in white that I use to write the device on the AC adapter transformer block. These markers are similar to a Sharpie marking pen, except they contain paint instead of ink and come in light opaque colors that contrast nicely with mostly black AC adapter transformer blocks.
Another benefit to this labeling, is when unplugging a device from a power strip, I do not have to guess or trace wire through a rat’s nest of wires to find the correct AC adapter to unplug.
I still have a box of orphaned AC adapters from devices that are obsolete or broken. At least now I have a chance to pair it up with a new device without hours of research.