I noticed this unit has an input for an AC Adapter but I read that it doesn't need it to work, when would I have to use the adapter then?
876295
The DirecTV box does NOT output the required 5 volts via the HDMI output. If you use DirecTV (at least the HD DVR) you WILL need the power supply. I've tried 4 different HDMI switches to no avail. The only way around this is if you use a secondary HDMI device (such as a blue ray player) which does output the 5v; then you will need to also have that unit powered on while watching the device (DirecTV) that does not supply it's own power supply. P.S. The ChromeCast device from google does not supply power either.
876296
It works with my HTPC and Roku, but not my Chromecast. For some devices you do need power.
876297
Hi Bruce, i'm not sure when will you have to use the adapter but the switch is powered by the HDMI cable you connect to the TV on mine
876298
Some few devices are non-standard and their HDMI ports are not powered. In those rare cases an AC adapter will be required. I found all the devices I use, except the cable DVR box, worked fine. I requested an AC adapter from the seller and they sent me one, free of charge.
876299
Other response is correct, DirecTV Genie does not output the necessary 5v. Other than that works fine. You can micky mouse a work-around by turning on one of the other devices on the switch, and then manually switching to the input you want, but is a nuisance.
876300
This unit does need power adapter if your HDMI port doesn't produce a power source for it. I ordered it and was about to send it back but Amazon made it right by giving me a power adapter free of charge. This post needs to be changed because the information is incorrect and from my understanding Amazon is working on having this corrected for future buyers.
876301
This unit sometimes DOES need power. Devices such as the Directv Genie don't give off any power through their HDMI output, so it WILL NOT WORK without an AC Adapter supplying power to the switch. Check if your devices HDMI output ports give off 5V of power. If not, then you need an adapter. The seller is aware of this, but refuses to update their description. Also, it's not helping that reviewers are saying no power adapter is needed. Sometimes it IS needed.
2126736
I comes with the AC adapter.. its a plug and play with ubuntu linux running ..
1073513
Not sure what you mean by an "AC Adaptor". It comes with a standard power cord.
1833260
Yes, it has an ac adapter. The attachment to the unit is like a miniature shielded mike jack. I have not seen a power plug of this design before. It is not a standard jack or usb input. It has a round shield and three pins. The shield is dimpled so that it only fits one way. The transformer has wires coming in and out so the plug in doesn't take up space on the wall or on your power strip. It has 120 VAC input and two outputs: 18.5 VAC 250 mA and 3.0 VAC 100 mA. There is no on/off switch on the board, so when it is plugged in, there is a bright blue light that shines showing that it is on. The only way to de-energize the board is to unplug it at the board or at the power source. Yes, it has an ac adapter. The attachment to the unit is like a miniature shielded mike jack. I have not seen a power plug of this design before. It is not a standard jack or usb input. It has a round shield and three pins. The shield is dimpled so that it only fits one way. The transformer has wires coming in and out so the plug in doesn't take up space on the wall or on your power strip. It has 120 VAC input and two outputs: 18.5 VAC 250 mA and 3.0 VAC 100 mA. There is no on/off switch on the board, so when it is plugged in, there is a bright blue light that shines showing that it is on.... » Read More Yes, it has an ac adapter. The attachment to the unit is like a miniature shielded mike jack. I have not seen a power plug of this design before. It is not a standard jack or usb input. It has a round shield and three pins. The shield is dimpled so that it only fits one way. The transformer has wires coming in and out so the plug in doesn't take up space on the wall or on your power strip. It has 120 VAC input and two outputs: 18.5 VAC 250 mA and 3.0 VAC 100 mA. There is no on/off switch on the board, so when it is plugged in, there is a bright blue light that shines showing that it is on. The only way to de-energize the board is to unplug it at the board or at the power source. « Show Less
2164126
I did not need one it should work without an adapter. If you haven't already purchased the unit I would advice against it, it's a piece of crap with no support when it fails and it will fail.
1870790
The original series came with an AC adapter, but I also bought a newer one that did not come with one. I suggest confirming with the seller as the adapter replacement I bought was another $20, otherwise it was battery operated only.
2261693
You probably already tried this, add power to the adapter. it only works when it has power.
1198083
It comes with an AC adapter. I use mine with the AC adapter most of the time, seems like the signal comes in stronger that way.
1625073
I just plugged it in with no adapter, and it works fine. I'm sure you could use an adapter as well.
1903503
I threw this thing away. It was cheaply built, the AC adapter wasn't nearly long enough and was constantly coming unplugged. (sorry if that doesn't specifically answer your question, maybe it is helpful anyway)
559861
it requires a DC power source. If you want to use AC power you will have to convert it to DC.
829689
For those that purchased an ac adapter...where on the unit does it connect? I can't seem to find a plug connector anywhere. Also, what model adapter did you purchase? This unit would be perfect IF I can power it thru an outlet. Thank you very much! - Brian
841760
My hub came with the AC adapter that I need to just plug into a standard AC outlet. If your came without the adapter I would contact the vendor addressing the problem.
1955004
Not sure what you mean by 'adapter'. If you're referring to AC power supply, yes it plugs in.
616480
Hi,Thanks for asking! If you have a "System 4 or 5" the AC adapter requires the use of a standard 230 V AC source.
359081
Obviously the unit needs to be powered for it to be function. The top left "input" on the unit is for 12v in. The wall power adapter that comes with the unit needs to be plugged in, coax from that right into that port is how you accomplish that. I hope that answers your question.
2205442
You need to buy the adapter listed. I plug mine in all the time to keep things cool Here is the link http://www.amazon.com/Koolatron-Multi-Purpose-Adapter-110AC-Volts/dp/B00009PGNT/ref=pd_bxgy_auto_text_y