Worry not, [Spencer Maroukis] has got you covered with the USB Sleuth Cable Tester! The cable tester is a beautiful black circular PCB, with USB ports of nearly every type on the edges.

Use the formula: Speed = file size / transfer time, to calculate your data transfer speed. For example, if a 2GB file took 40 ...

Worry not, [Spencer Maroukis] has got you covered with the USB Sleuth Cable Tester! The cable tester is a beautiful black circular PCB, with USB ports of nearly every type on the edges.

In fact, given how fast today’s power banks and charging plugs have gotten, it’s probably time to upgrade your cables. And now’s a great time to do it because these Ugreen USB-C cables are ...