Re:User banned from Das Keyboard forums for telling people o...
by michaelt on Wednesday August 08, 2018 @06:45AM
(#17714708)
Why do keyboards have hard-wired cables anyhow?
Captive cables only need enough copper to supply enough current for the device they're built into.
Separate cables, OTOH, need enough copper for 500mA with a certain voltage drop to be USB standard compliant. Means 24AWG or bigger for a 2m cable [1].
That's why your keyboard, mouse and webcam have skinny cables while other USB cables are much thicker.
Separate cables, OTOH, need enough copper for 500mA with a certain voltage drop to be USB standard compliant. Means 24AWG or bigger for a 2m cable [1].
That's why your keyboard, mouse and webcam have skinny cables while other USB cables are much thicker.
[1] http://cdn2.goughlui.com/wp-content/uploads/2014/10/USB-Cabl...