Question 1

If male connector is plugged into charging port, does female and micro usb end both receive power?

Accepted Answer

Yes. If you plug the male Type A jack of this cable into a charging port, the micro USB jack and the female Type A jack will both receive power. HOWEVER, if I assume you're trying to use this cable to both power a smartphone/tablet and a USB peripheral (like a mouse, keyboard, or flash drive), my answer changes to "No, in almost all situations". Whether the micro USB jack can be used to charge a device, say, a smartphone, at the same time as the device plugged into the female jack will depend on the software/firmware of your device. Many Android smartphones out of the box are not capable of hosting USB peripheral devices (like mice, keyboards, cameras, etc) at all. And, almost no Android smartphones and tablets are capable of hosting USB peripheral devices and being charged at the same time. For example, I tested the Nexus 4 (with factory software) and it is not able to host USB peripheral devices regardless of what cable you use. When this cable is used to connect a Nexus 4, a phone charger, and a USB mouse, this cable will allow the Nexus 4 to charge, but the Nexus 4 will never be able to host the mouse. I have also tested this cable with an LG Optimus Exceed 2 (Android smartphone). The outcome is the same as it is with the Nexus 4. I have also tested this cable with a Dragon Touch M7 (Android tablet). The M7 is able to host USB peripherals, but the M7 does not charge when this cable is connected to both the M7, a USB peripheral, and a charger. The power source seems to only power the USB peripheral. I recommend you do more reading on this topic with regard to your specific application. It's possible that custom software exists that would allow you to use this cable to both charge your device and power a USB peripheral at the same time.

Question 2

Will this cable charge the OTG device (my Nexus 7) via the male USB end WHILE I'm using the Nexus 7 via the female USB end (a camera hook-up and app)?

Accepted Answer

If you use the micro USB to power the Nexus 7, the USB Male to your power source (such as a computer or USB outlet) and plug your camera in via the female USB, it will charge your Nexus 7. I am currently using this configuration with Timur's ROM and it charges my Nexus 7 in my car while using a USB DAC to provide audio signal to my amplifiers.

Question 3

Can I use this cable to link an external dac to my android 5.0 phone and at the same time supplying power to the said dac via the usb male connector

Accepted Answer

Yes.  The connected power will supply both the phone and the dac.

Question 4

I have this cable as well as 4-port hub; i can charge my phone and us wireless mouse but not at the same time. what else do i need to do do this?

Accepted Answer

Try a different hub. I use this in the car with a 4 port hub, a wireless keyboard/air mouse, and it charges.

ASIN	B00NSBVNCM
Best Sellers Rank	#265,714 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1,188 in Cell Phone OTG Adapters
Brand	JIUWU
Color	Black
Compatible Devices	samsung galaxy s2
Connector Type	Micro USB
Customer Reviews	4.0 4.0 out of 5 stars (163)
Finish	Matte
Item Dimensions	6 x 3 x 0.3 inches
Item Weight	9.07 g
Manufacturer	JiuWu
Mfr Part Number	CA274
Model Number	CA274
Number of Items	1
Number of Ports	2
Package Quantity	1
Power Plug Type	No Plug
Smart Home Compatibility	Not Smart Home Compatible
UPC	701304988765
Unit Count	1.0 Count

Micro USB Y Splitter OTG Cable with Power Charging Cord | 13cm OTG Line & 25cm Power Cord, White, Simultaneously Charge Phone Tablet & Connect USB Flash Drives, HDD, External USB Hub

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