# TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender

AV600 Extender: The TP-Link TL-WPA4221 KIT is a powerline networking kit that carries a network connection over your home’s electrical wiring and adds Wi-Fi in a weaker-coverage area. Its listed rates are up to 600 Mbps over powerline and 300 Mbps over Wi-Fi, with two Fast Ethernet ports for wired devices.

- [Original product page](https://bargainpostbox.co.uk/product/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [View offer](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: TP-Link
- Model: TL-WPA4221 KIT
- Category: Computers > Networking > Wi-Fi Extenders & Access Points
- Price: 44.99 GBP
- Previous price: 59.99 GBP
- Discount: 25%
- Price checked: 2026-11-12T15:05:03.753Z
- Rating: 4.3 / 5
- Reviews: 20595

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Uses existing household electrical wiring to extend network access, with no additional wiring or drilling claimed.
- The listing claims up to 600 Mbps over powerline and 300 Mbps Wi-Fi. These are different connection rates, not a promise of delivered internet speed.
- Two 100 Mbps Fast Ethernet ports are specified for wired devices.
- A Wi-Fi button is claimed to copy the router’s network name and password, with subsequent setting changes syncing across the powerline network.

## Pros

- Powerline networking can provide a route to rooms where the router’s Wi-Fi is weak, without running new network cable.
- Wi-Fi extension and two wired Ethernet connections are combined in the kit.
- The stated one-touch Wi-Fi configuration can copy existing router credentials.

## Cons

- The wired ports are Fast Ethernet at 100 Mbps, which limits wired throughput below the listed 600 Mbps powerline rate.
- Real-world speed depends on the electrical wiring and conditions between the adapters, so the headline rates should not be treated as guaranteed.

## Specifications

### Identity
- Brand: TP-Link
- Model: TL-WPA4221 KIT
- Powerline standard: HomePlug AV2
- Data link protocols: Ethernet, HomePlug AV2, IEEE 1901, IEEE 802.3, IEEE 802.3u
- Listed data transfer rate: 600 Megabits Per Second
### Network features
- Wi-Fi rate claimed: 300Mbps
- Ethernet port specification: 100 Mbps Fast Ethernet
- Powerline range claimed: 300 meters / 1000 feet
- Hardware interface: Ethernet
- Compatible device: Router
### Dimensions and installation
- Dimensions listed: 13.8L x 10.2W x 19.2H centimetres
- Weight listed: 0.21 Kilograms
- Colour: white
### Other listed details
- Compatible operating system family: Windows
- Minimum required operating system version: Mac OS 14 Sonoma
- Warranty: 3 year Manufacturer

## Before you buy

- The stated 600 Mbps powerline rate, 300 Mbps Wi-Fi rate and 100 Mbps Fast Ethernet port rate describe separate links. The 300-meter powerline range is a manufacturer claim, not a guarantee of coverage or throughput in a particular home.
- The product title names TL-WPA4221 KIT, while the explicit box-contents list names TL-PA4010 and TL-WPA4220. The listing also describes two Ethernet ports and separately advertises two cables without a matching explicit box inventory. Confirm the selected kit and included cables before buying.

## In the box

- TL-PA4010 (Included): Named in the explicit contents list, although the title identifies a different kit model.
- TL-WPA4220 (Included): Named in the explicit contents list, although the title identifies a different kit model.

## A good fit for

- Homes where electrical wiring offers a practical way to extend network access to a garden room, office or other weak-Wi-Fi area.
- Buyers who need Wi-Fi access plus wired connections for devices such as a television, PC or game console, and can work within 100 Mbps Fast Ethernet ports.

## Less suited to

- Anyone needing gigabit Ethernet or wired throughput above the stated 100 Mbps port rate.
- Buyers who require a guaranteed internet speed or coverage distance without checking performance in their own wiring and layout.

## Customer feedback

Customer feedback highlights easy setup and reports of improved Wi-Fi reach, including in garden rooms and offices. Experiences are mixed on connection reliability and speed, with some reports of dropouts or very low throughput. This matters because the kit’s listed rates are maximum claims across separate powerline, Wi-Fi and Ethernet links, not guaranteed results in a particular home.
- Positive themes: Customers report easy setup and improved Wi-Fi reach in parts of the home with weaker coverage.
- Negative themes: Some customers report connection problems or say the device stops working after a few hours.
- Mixed feedback: Reported speed varies, ranging from substantial improvement to very low throughput.

## Frequently asked questions

### What does the AV600 rating mean for this kit?
The listing gives a powerline data rate of up to 600 Mbps. It separately claims 300 Mbps Wi-Fi and specifies 100 Mbps Fast Ethernet ports, so these figures apply to different parts of the connection.
### Can it extend Wi-Fi to a room with weak coverage?
That is its intended use. It sends network data over household electrical wiring and provides Wi-Fi from the extender, but actual results depend on the home’s wiring and layout.
### How many Ethernet ports are specified?
The product feature details specify two 100 Mbps Fast Ethernet ports. The title’s “2+1” wording is not reconciled with that specification in the listing.
### What is listed in the box?
The explicit contents field names a TL-PA4010 and a TL-WPA4220, which differ from the TL-WPA4221 KIT model in the title. Confirm the exact selected package before purchase.

## Alternative options

- [STRONG Powerline Adapter Kit AV600, Powerline WiFi Extender, WiFi 300Mbps, 2+1 Ethernet Ports, HomePlug AV, Powerline Network Adapters, Plug & Play, UK Plug](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [TP-Link RE700X AX3000 WiFi 6 WiFi Extender Booster WiFi Booster \| Gigabit Port, OneMesh Compatible, Access Point, 160MHz Channel, Adaptive Path Selection, Works with Any WiFi Router, UK Plug](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [STRONG AV600 Powerline Adapter Kit, Fast Ethernet Ports, HomePlug AV, Wired Internet for HD Streaming & Online Gaming, Plug & Play](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [STRONG AV600 Powerline Adapter Kit, 100Mbps LAN, 3 Pack \| Plug & Play, Power Saving Mode, Ideal for TV, PC, or Gaming Console](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [TP-Link RE505X AX1500 WiFi 6 WiFi Extender Booster WiFi Booster \| Gigabit Port, OneMesh Compatible, External Antennas, Works with Any WiFi Router, App Control Easy Setup, UK Plug](https://bargainpostbox.co.uk/visit/tp-link-re505x-ax1500-wi-fi-6-range-extender)
- [TP-Link Deco X55\(3-pack\) AX3000 Whole Home Mesh WiFi 6 System, WiFi Router \| AI-Roaming WiFi Extender Booster, Dual Band, Coverage 6,500 ft2, 150 Devices Connection, Easy Setup, Alexa&GoogleHome](https://bargainpostbox.co.uk/visit/tp-link-deco-x55-3-pack-ax3000-wifi-6-mesh-system)
- [STRONG Powerline Adapter Kit AV600, WiFi 300Mbps, 2+1 Ethernet Ports, Passthrough Socket, HomePlug AV, Powerline Network Adapters, Plug & Play, UK Plug](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [WiFi Booster, Wifi Extender, Home Wireless Signal Booster \| Covers 3980 Sq.ft & 55 Devices, Internet Booster with Ethernet Port UK Plug](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [devolo Magic 2–2400 Wi-Fi 5 Next: Whole Home Kit \| 4k/ 8k UHD Streaming \| Stable Home Working \(Up to 2400 Mbps Powerline, Mesh WiFi 5, G.hn, 5x Gb LAN ports\)](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [2026 WiFi Extender Booster, WiFi Booster Range Extender, Wifi Repeater \| Covers Up to 9900 Sq.ft and 65 Devices, Easy Setup, Wifi Extender with Ethernet Port](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4221-kit-av600-powerline-wifi-extender)
- [Mercusys ME60X AX1500 WiFi 6 WiFi Extender Booster WiFi Booster \| Gigabit Port, EasyMesh Compatible, High-Gain Antennas, Works with Any WiFi Router, App Control Easy Setup, UK Plug](https://bargainpostbox.co.uk/visit/mercusys-me60x-ax1500-wifi-6-range-extender)

## Add-ons

- [TP-Link TL-WPA4220 2-Port Add-On Powerline Adapter, Range Extender, Broadband/WiFi Extender, WiFi Booster/Hotspot, No Configuration Required, UK Plug](https://bargainpostbox.co.uk/visit/tp-link-tl-wpa4220-powerline-wifi-extender)

## Images

![TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender — 1](https://bargainpostbox.co.uk/i/jh5h7JyNlnlcT-xbgGbTkC-SsMM4nHf4zTM9qL6GuV9Z2GyknOaBClktmFoUcTkkXBcneBwJOHYONS464kVUIutJKGith8gf_aVyaceAv7_f_0jHT-iDsYJd.jpg)

![TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender — 2](https://bargainpostbox.co.uk/i/NocvG5WO9mVwEMHDp_RsaCbut1_cx6VWI47cDw-ZkKdK8kOCpNYsYg3C3vIR_jX8iZq6iSYR34Mdnu1ZAobPw94TvaQZFFPgoITfGcVep7zBL8zC0s6gv7g7.jpg)

![TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender — 3](https://bargainpostbox.co.uk/i/xNjyNHECz_ebz3CmTiE6Mxv6lq9LqCrWwtCqXc92kF6jn9XzBURena3-2KQg1MV-2dAEI1kxZVfrcs9h5PhjgoJaUV6LqPZ9pEB5Q7uWX0_tjSU1tXuWsuRV.jpg)

![TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender — 4](https://bargainpostbox.co.uk/i/8crAXg6WtxVCyO7mjvd3RaUnTK-3_7L_UURY6W_uTVpQQaGL31QLOWTGoreRKNqq2lNdMhAinquDBMBith5D4eBe-oCE6EA6LCUMVDkHCrgMrzcz4Tboh5C4.jpg)

![TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender — 5](https://bargainpostbox.co.uk/i/PZEyLFdYQKufZvcpQ2sMk0YPe40x6mM7g0iPTW7nMLpgrme2qethjXopclQ1CLtAC6nd0qL1HynwCaTrRxHF7F4xE9gRxwvNvuM7T9yGDW0JkkHb38GVdWkt.jpg)

![TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender — 6](https://bargainpostbox.co.uk/i/ojXRndaWDqm8dun-BaqynSonYo0YquVl9N10JtawutZIUDrR8Bjrhk_pySJ971nModWclzhgfFdaRBaCuzhE54_7PPS4GQwgMcdWfz5V1pbLFH0rYMNKevA-.jpg)

![TP-Link TL-WPA4221 KIT AV600 Powerline Wi-Fi Extender — 7](https://bargainpostbox.co.uk/i/plc_RK0JgEjed93usY3p2-qU2WsrJMf4UUXTTQx9NL-PQALuuXpoQTGLJwYpRDJrq7lrUe_A_7jWMLKj-Ihb8R7AWETifKQ6J_8SEekKFe5Jx0ZnirWxI7dM.jpg)