[Elecraft] Powered USB hub for multiple KUSB

[Kevin]

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
>>
>>
>
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