Review on Enhanced Silkland Thunderbolt Compatible MacBook DisplayPort: New Levels of Performance by Ricardo Mercado

The cable is of decent quality and seems solid. However, for a long time I couldn't figure out why my monitor wouldn't go to sleep (it used to always do). Some searching has led me to several forums where said cable can sometimes be the culprit. Of course, another cable allowed the monitor to sleep. A bit of a hassle but for the money I think it's ok as long as you don't mind turning the monitor on and off manually. I have a habit of just walking away after locking my desktop, so it's a little annoying for me personally.