So this is a wifi repeater and it turns your electrical system into ethernet cable too?

The TL-WPA4220 KIT allows you to expand your home's Ethernet connectivity using the existing electrical wiring within your walls, while also providing Wi-Fi signal broadcast at the Powerline Wi-Fi Adapter (TL-WPA4220) location. Simply plug the TL-PA4010 (smaller unit) into a wall outlet near your router and connect it to the router via Ethernet, then plug the TL-WPA4220 unit into a wall outlet at the desired location. Regards, TP-Link Support

My router (TL-WDR3600) is dual band (2.4 and 5.0 GHz). Can this extender put out 5.0 as well as 2.4 ?

I received the TL-WPA7510 KIT today, and the back of the product box itself indicates it supports both 2.4 and 5 GHz. "Fast Dual Band Wi-Fi for Every Need in Every Room. 300Mbps (2.4GHz) is ideal for browsing the web and video chatting, while 433 Mbps (5GHz) is perfect for HD streaming and lag-free gaming." So it may depend on which model TP-Link unit you purchased.

What is the difference between the starter kit and the add-on extender kit? How do I know which one to buy? Thanks.

This powerline system needs two devices. The base station "adapter" that connects to your modem/router and a "extender" to put anywhere in your house. Unless your house is huge (5+ bedrooms), you would only need 1 maybe two "extenders". The kit is both pieces. The extender provides a 2nd extender if one wasnt enough. The extender broadcasts wifi and has 2 Cat 5 ports, so one should be enough if you already have a wifi modem/router somewhere else in your house.

If I have my modem directly plugged into one of the TL-PA4010, will this device create a new wifi network?

No, this device (TL-PA4010) does not have WAN port, the rj45 port is LAN port.You must first have a router connected to the modem.Then connect the 4010 to the electrical outlet close to the router.Then connect the 4020 to the electrical outlet (e.g. , another room of the house) or where you prefer.The 4020 mirrors the router, and allows you to extend the network. wireless network and connect 2 devices by their rj45. atte EAS

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⚡ Power up your WiFi game—fast, smart, and effortlessly connected!

PLUG PLAY SIMPLICITY - Set up in minutes with push-button security—no IT degree required.
DUAL CONNECTIVITY PORTS - Connect smart TVs, gaming consoles, and streaming devices with lag-free HD performance.
ENERGY EFFICIENT DESIGN - Automatically cuts power consumption by up to 85%, saving you money and the planet.
UNIVERSAL COMPATIBILITY - Works flawlessly with all AV600 and related powerline adapters for scalable network growth.
SEAMLESS HOME NETWORK EXPANSION - Turn your existing electrical wiring into a high-speed internet highway—no new cables needed.

The TP-Link TL-WPA4220 KIT Powerline WiFi Extender leverages your home's electrical wiring to deliver up to 600Mbps wired and 300Mbps wireless speeds. Designed for easy plug-and-play setup, it features dual Ethernet ports for connecting multiple devices and incorporates power-saving technology that reduces energy use by up to 85%. Compatible with a wide range of AV600 and related powerline adapters, it ensures reliable, lag-free HD streaming and gaming across your home network.

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Wireless Type	802.11bgn
Brand	TP-Link
Series	Powerline Wifi Extender
Item model number	TL-WPA4220 KIT
Operating System	Windows 2000/XP/2003/Vista, Windows 7/8, Mac, Linux
Item Weight	7.2 ounces
Product Dimensions	7.21 x 5.36 x 3.35 inches
Item Dimensions LxWxH	7.21 x 5.36 x 3.35 inches
Color	White
Voltage	28 Volts
Batteries	1 AAAA batteries required.
Department	wireless networking
Manufacturer	TP-LINK USA
Language	German
ASIN	B00HSQAIQU
Is Discontinued By Manufacturer	No
Date First Available	January 10, 2014

TP-Link Powerline WiFi Extender - Powerline Adapter with WiFi, WiFi Booster, Plug & Play, Power Saving, Ethernet Over Power, Expand Both Wired and WiFi Connections, AV600 (TL-WPA4220 KIT)

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