Question 1

Is this a wifi product or do I need to connect a cable to the second box?

Accepted Answer

This is not a wi-fi product and has no wi-fi capability.  You take 1 unit and attach it by cat 5e cable (included in the package) to a lan port on your router and plug this unit into a nearby electrical outlet (they say it should go directly in an outlet and not through a UPS or surge protector strip).  The other unit (and additional ones if you want more connections) you plug into an outlet somewhere else in your house where you want a wired LAN connection, using the second included cat 5e patch cable to connect to your computer or Roku or whatever.  I find that this is faster than most wi-fi and is as reliable as wi-fi (sometimes you need to unplug and replug the device), but nowhere near as fast as a direct cable connection over cat5e (but you don't have to destroy your walls, either).

Question 2

CAN YOU ADD A THIRD UNIT TO THIS?

Accepted Answer

Yes, I am currently using 3 units. I believe you can add up to 64 total units. I will probably add 2 more for a total of 5. So far, I have not noticed any drop in speed by adding the 3rd unit.

Question 3

hello, I see in specs "Plug Type: EU, US, UK", but in package contents I don't see additional plugs for EU. can I use this device both in USA and Europe without special adapter?

Accepted Answer

No, it only has the American 2 prong plug.  You will need a plug adapter to use overseas.  It is 100-240 volt capable, so it will work with a plug adapter.

Question 4

How do I get 4 of them to work? 1 of them connected to router and 3 others around the house

Accepted Answer

hmmm this is a little late but the only the only thing i can think of is pushing all of the pair buttons at the bottom at the same time with them all plugged in. Hope this hepled a little bit

-Nick

Brand	TP-Link
Model	TL-PA511KIT

Standards	HomePlug AV, IEEE802.3, IEEE802.3u, IEEE802.3ab
Encryption	128-bit AES Encryption
Ports	Gigabit Ethernet Port
LEDs	PWR, PLC, ETH
Certifications	CE, FCC, RoHS
Powerline Speeds	Up to 500Mbps
Connection Type	RJ45
Connection Speeds	10/100/1000M
Kit Type	Double
System Requirement	OS: Windows 2000/XP/2003/Vista, Windows 7, Mac, Linux

Temperature	0°C ~ 40°C
Humidity	10% ~ 90% Non-condensing

TP-LINK TL-PA511KIT High-speed AV500 Powerline Adapter Starter Kit w/Gigabit Port, up to 500Mbps

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Item#: N82E16833704139