[Elecraft] USB Cable Power Requirements

[Tim Groat]

It is a low power USB device, because it does not power anything in the 
rig. The only connections are TX data, RX data and common (ground)--see 
page 5 of the KX3 manual. It won't strain either of those USB hubs.

--Tim (KR0U)

> I bought a Mac with only four USB ports and am going to purchase a powered hub.  One of the hubs offers seven ports, but only 2 A for all the ports.  The four-port version offers a full 500 mA per port.