The cable is round and very elastic, so that breakage is likely to have done on the cable. Before the plugs themselves the cable is reinforced again. We are not so long in use, but we think that no breakage is caused by the smoothness of the cable. Man bends surely not the cord immediately after the plug from, right?
The connectors themselves are working very high quality and accurately. I have just the Kindle store, works just fine. The Kindle is for me always the test object because the micro USB port does not accept all the plugs on Kindle. Now and then he goes on strike at the micro USB connectors. No idea if this is so only in my model, but the better it is therefore for testing.
I find the 2 meter long cable with value and it does what it should. The price is okay