These have to be some of the best usb charging cables I have found. At 20 guage power wires and 28 guage data, these 1m long cables are very thick and heavy duty. They have 480 Mbps transfer speed and they feel like quality cables and the connectors feel pretty durable too. They have a nice snug fit, not loose like other brands I have tried. Very pleased with the YCCTeam Micro USB to USB cables.