Got this cable for a "Mini displayport to DVI" adaptor that needed some strain relief. When I hooked it my computer did not recognize anything connected. I did a little digging and found I missed the reviews on adapters. This cable is a passive extension instead of an active extension so it did not work with the adaptor. It would have been helpful to label the cable with this information.
CONS: Does not work with Active adaptors. (I.G. mini display to DVI, etc)
I use Apple's Mini DisplayPort to DVI Adapter on my 15" MBP. The Apple Part is about 4 inches long, so when you bring the DVI Cable to the computer, if it doesn't happen to sit just right the thick, heavy DVI cable torques the Apple adapter and makes me concerned for the lifespan of Apple's adapter. Also, The DVI end of Apple's adapter tends to snag on the end of my desk, if I move the MBP it can yank on the cable.
With the 3ft Mini DisplayPort extension, The monitor cable can be tucked away there no strain on the connectors at either end, and nothing to snag on the edge of the desk.
works great with my Apple LED thunderbolt Display - It gave strength to the connector cable which is now much more secure and does not toggle my display on and off when adjusting cables around my displayâ??s connection.
The perfect solution for my new Mac mini. Use of this extension cable directly out of my Mac mini keeps the cables neat all the way to the floor, where I then connect to the bulbous octopus of monitor cabling that lead to my Cinema Display. Perfect. You would think Apple would provide a solution.