Wall Warts for USB Powered Devices

[JT32]

I have the XB7 receiver, a ChromeCast 4K, an USB ethernet adapter for the ChromeCast and a TC-MC84 Moca adapter. That is 4 devices that receive power on USB connectors. Can I purchase one USB charger with four high power outlets to power all 4 devices?

[mdk]

@JT32 wrote Can I purchase one USB charger with four high power outlets to power all 4 devices?

If you have the money, you can. 

Select a "powered" USB hub. It is designed to provide 5V of power to each of its sockets. 

My XB7 cable-modem has 110V power. It is not powered via USB.

It seems that the TC-MC84 has 5V input, but it does not seem to have a power-cord that has a "USB-A" connector, implying that it is a 110V-to-5V adapter that connects to a power-bar (or wall-socket).

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[JT32]

My TL-MC84 MoCA came with a typical 120V to USB-A wall wart and a USB-A to USB-C cable and the back of the device is USB-C port for power.

I was referring to the Xi6 Ignite Entertainment Box receiver that connects to the TV via HDMI, not the XB7 itself. It also has a USB-C power jack. That apparently is 5V at 3A but I have to double check when I get home.

https://support.shaw.ca/t5/tv-articles/equipment-info-4k-wireless-tv-player-xione-xi6/ta-p/6588

The ChromeCast is apparently 5V at 1.5A, that with the USB to Ethernet adapter I think can be powered with either USB-A 3.1A or USB-C 20W

https://www.amazon.ca/dp/B09MTN8ZT3

So I only need three charge ports

This is the charger, it is only $21

https://www.amazon.ca/Charger-Aioneus-Charging-Multiport-Samsung/dp/B0BYZH4JQZ

[mdk]

@JT32 - the math  works:

5V at 3.0  A   [ this is 15 Watts]
5V at 1.5 A   [ this is 4.5 Watts]
USB-A 3.1 A [ this is 15.5 Watts]
or USB-C 20W [ 20 Watts equals 5V times 4 Amperes]

This is the charger, it is only $21 [ max. output is 40 Watts]

15+4.5+15.5 is 35 Watts (if each device consumes 100% of each wattage) and the charger supplies 40 Watts.

[mdk]

Oops! Twice, I wrote "4.5" instead of "7.5".  So, a maximum of 38 Watts is consumed by the 40 Watt output of the adapter.

[JT32]

Close. I'm assuming the ethernet adapter uses less than 1w based on a google search but lets say 2.5w to be safe.

5v at 3.0a is 15w (Ignite box)
5v at 1.5a is 7.5w + 2.5w = 10w (ChromeCast + Ethernet)
5v at 1.0a is 5w (MoCA adapter)

So I'm at 30w.

My headphone transmitter needs 9v at 0.3a which is 2.7w so I have room for that.

The USB-C output is capable of 9v at 2.22a

This cable can deliver what I need but Sennheiser's manual for the RS 175 says I have to use their power supply.

https://www.bixpower.com/product-p/cab-uc-9v.htm