Many different adapter pieces
The adjustable voltage gives this power supply tremendous usefulness. On top of that the variety of round connector adapters is excellent from very tiny to very large and many in-between. The smallest round connector adapter works perfectly to charge my Winnovo tablet and should work for most any round power connector. Be sure to check the polarity of your tablet, pc or other small electronic device. Comes with a little tool to make turning the voltage to the right setting. Has plenty of power and makes it very convenient to have a dedicated power supply for many, many devices. The 30-watt capacity is excellent, too. I highly recommend this device. I had an opportunity to check out the third party seller's customer service as a shipping error caused my power supply to go to the wrong state. They took care of it right away and were very professional and prompt in their communications. This is exemplary customer service. I think Newegg does a great job of vetting third party sellers. This is one fine example. Thank you.