Review on Surface Pro Charger, 43W 12V 3.58A Power Supply Adapter with Power Cord for Microsoft Surface Pro 1, Pro 2, RT | Compatible with 1512, 1536, 1601 i5 i7 Tablets by Daniel Pyfer

Just received this and was pleasantly surprised to find that it has a power LED on the connector, similar to the original power supply. This is a great feature as these things will fail and not make good contact when they fail and you will never know if you are actually plugged in and charging your device if you don't have this feature. The failures I've observed (this is my third power supply) are due to poor mechanical design (lack of strain relief) and a few other issues that I won't go into. Anyway, I just got it and we'll see how long it lasts. As a general rule, the power supply never fails on the others I've had, so we'll see how long that lasts. But at this point I'd say that at this price point plus the LED feature it's good value for money.