I found an option on Amazon: https://www.amazon.com/BLACK-LBS008A-USB-Powered-8-Port-Switch/dp/B0148J50EY
Can a Laptop USB actually supply enough power for these?
The Blackbox website for the model (https://www.blackbox.com/en-us/store/Detail.aspx/8-Port-Fast-Ethernet-Switch/LBS008A) says 3W is its max power draw. However the pdf manual says 4W max power (page 6 of https://az849230.vo.msecnd.net/resources/lbs005a_lbs008a_rev4_21159.pdf)
Either way, USB 3 should supply 900mA or 4.5W right? I have a HP pavilion, which has USB 3.0.
But a support forum answer on the HP site (https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/What-isthe-power-output-of-my-USB-port/td-p/5334020) says there are 2 kinds of USB ports, standard (500mA max) and charging (1500mA max).
My laptop's manual says it has standard USB 3.0 ports. It doesn't mention anything about the amperage capacity. (https://support.hp.com/sg-en/product/hp-pavilion-13-a300-x360-convertible-pc/7771383/model/9111946/manuals)
Can a Laptop USB actually supply enough power for these?
The Blackbox website for the model (https://www.blackbox.com/en-us/store/Detail.aspx/8-Port-Fast-Ethernet-Switch/LBS008A) says 3W is its max power draw. However the pdf manual says 4W max power (page 6 of https://az849230.vo.msecnd.net/resources/lbs005a_lbs008a_rev4_21159.pdf)
Either way, USB 3 should supply 900mA or 4.5W right? I have a HP pavilion, which has USB 3.0.
But a support forum answer on the HP site (https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/What-isthe-power-output-of-my-USB-port/td-p/5334020) says there are 2 kinds of USB ports, standard (500mA max) and charging (1500mA max).
My laptop's manual says it has standard USB 3.0 ports. It doesn't mention anything about the amperage capacity. (https://support.hp.com/sg-en/product/hp-pavilion-13-a300-x360-convertible-pc/7771383/model/9111946/manuals)
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