[Elecraft] Powered USB hub for multiple KUSB

[Phil Wheeler]

My computers have no such limitations (all USB3 
and no issues with un-powered hubs, of which I use 
three).

Phil W7OX

On 6/18/16 3:52 PM, Kevin wrote:
> Why powered?
>
> Because motherboard USB ports are limited to 
> 100ma current draw at computer startup. Then 
> once they reach 93% of rated voltage the limit 
> goes to 500ma. Maximum power draw for any one 
> port is 2.25 watts. With an unpowered hub all 
> connected devices share the current/power limit.
>
> Get a powered hub and the seven or eight devices 
> hanging off the hub are guaranteed not to 
> overload the USB port.
>
>
> On 6/18/2016 5:30 PM, Phil Wheeler wrote:
>> Get a USB3 hub while you're at it.
>>
>> Why powered? None of mine are. Well, maybe due 
>> to USB3 ports :-)
>>
>> Phil W7OX
>>
>> On 6/18/16 3:18 PM, Jim Kutsch, KY2D wrote:
>>> I'm running out of USB ports and need a USB 
>>> hub. It will serve the KUSB for
>>> the KX3, KPA500, and KAT500, as well as a 
>>> SignaLink  and a packet interface.
>>> Do any of you have a recommendation of a good, 
>>> RF quiet powered hub? Are
>>> there any to avoid? It would be great to be 
>>> able to power it from the shack
>>> 12 VDC supply rather than have yet another 
>>> power brick. In the absence of
>>> any info, I'm looking at an Anker 7 port 
>>> powered hub that is powered from a
>>> 12 VDC adapter.
>>>
>>>
>>>
>>> Thanks and 73, Jim, KY2D