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
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