If you don't use the power connector, would the HDMI still work?
644349
no, you need some kind of USB power source to operate the HDMI. On a Galaxy Note 8 it does not send enough power through to charge the tablet, so don't start a movie with %20 battery remaining. Galaxy Nexus seems to last longer, doesn't charge but drains slowly.
644350
The power cord is there to keep your phone charged. It is not used by your tv or phone to bring juice into the hdmi cable. If you do not hookup the power cord you lose phone charging, nothing else.
1476152
Hi. I'm Sorry I don't know for sure on both questions. If you want a guess, I would say probably no hdmi output.
1188532
No the model I purchased did not require external power. I needed to convert HDMI from a new laptop to VGA to supply video to an older but still very functional larger fixed monitor. It worked fine. If you have a similar need be sure to check the monitor, some have a dual input VGA and PCI which gives you a choice in the converter/cable that you choose.
964845
I don't know. All I've used is the HDMI and USB, and have not had any issues at all. The other comment about the USB port being defective makes the most sense. I don't think VGA would deliver power -- I think that has to go through the USB connection.
247646
I have this in my pc but am not using the hdmi. Slot. If it works as the DV. It should be great
1123202
My simple answer is "Yes". When power returns (having gone), the monitor powers up on its own.
1506093
I would only use a HDMI cable. I suppose you could, but I personally would stay with the HDMI cable.Good Luck, Bill
1188531
It is powered through the HDMI port and does not need to be plugged into other power
635848
This device does not require a power adapter. The limited power that it consumes is delivered via the HDMI input.
785028
Does not need external power supply BUT if your HDMI cords are the longer variety it will definitely need externaml power.
443943
While I used it without the power adapter temporarily, I would recommend plugging this in. It will give you better longevity of the device, and it won't use extra power from your computer. I am not entirely sure whether you have external drives is a factor. I assume you are talking about external HDD or DVD drives?
640139
I use it from my directv to a computer monitor and I do not use external power. It works great.
1732918
Yes, it immediately turns on when power is applied, regardless of former state. If there is no signal on the (HDMI) input, it will power off within about 30 seconds. When it senses a signal it powered on and remained on unless it was turned off via the pushbutton panel or remote. Works very well and scales signals from 1080i, 720p, WXGA, and others quite well. Some resolutions look sharper than others. I liked 720p the best.
738154
Make sure to plug in your tablet charger into the adapter. HDMI needs extra power
842171
If your using an external USB device that has its own power supply (i.e. external HD that plugs into the wall) I'm pretty sure you don't need to power this card.
2007852
Your HDMI video and audio signals will pass through the receiver when it is "off". The receiver does not have to be "on".
851630
Very likely depends on which connection (VGA, HDMI, CoAx. The plug could be loose. I've had zero problems with mine, but doesn't mean it can't happen. Also could be the wire itself. Tty testing it on something else. MurryChristmas