Pros: Does what it says, turns a regular DVI cable into an extension cable
DVI-I, compatible with DVI-A or DVI-D, especially useful for CCTV applications
Cons: Build quality leaves something to desire, the female screw threads don't align properly with the plugs, such that the plug cannot be completely screwed into it
Since there was no DVI-I cable extension, I used it to extend a short cable stack for analog CCTV cameras into a PCI-E capture card in conjunction with a dual link DVI-I Cable, because it ran short and was always pulling on it when the server is serviced. Although the threads were visibly not straight, it's not a big problem, more of a nuisance, cable is still satisfactorily secured
I had ordered a mini-port to DVI cable for recent Apple MacBook Pro, unfortunately without first checking top see that the DVI end was male. The Apple adapters have a DVI female end, but are much more expensive. My bad to have not looked more closely at the expanded image. I ordered this so I could connect my laptop to the DVI cable. It works well for video (only) image.