Hard drive dock power port

[Generic username]

I have a cables unlimited hard drive dock for internal hard drives. On the back it has several ports, all of which I recognize, except for one marked PWR, seemingly, the power port. The port looks like the plugs on old keyboards and mice, but I have no cable that would fit. Does anybody know what cable would plug in there?

 

[hang-the-9]

There are components that use that type of power adapter, I have seen devices with the same type of port. My external drive dock uses one and so does an older Planar monitor I have that has an external power brick.

Look up your model online and see what power adapter it takes. eBay will likely have them listed.