Dell Latitude E6400 AC Adapter

I have a Dell Latitude E6400, which requires a 19.5 V charger, which has been a problem in the past. This charger works great for it, giving power and charging my computer, which I've read can be a problem. I highly doubt this is an actual genuine Dell product (even though it has the markings), but it has done the job so far and is a good pickup at the price. I've been using it for about 6 months now with no problems, so can't complain. It is different than pictured, as it has a 3 wired cord to the wall, but I actually like that more than what is pictured. I used a similar charger to this before, which broke after about a year and a half. I can't say whether or not this will last longer, but it certainly seems higher quality.