WIFI BOOSTER FOR EXTENDED WIRELESS COVERAGE: Adds Wi-Fi range coverage up to 1200 sq ft, and connects up to 20 devices such as laptops, smartphones, speakers, IP cameras, tablets, IoT devices, and more. Technical Support on 03448 754000
AC1200 WI-FI SPEED: Provides up to 1200Mbps performance using dual-band and patented FastLane(TM) technology. System requirements: Microsoft Internet Explorer 8.0, Firefox 20 or Safari 5.1 or Google Chrome 25.0 browsers or higher
UNIVERSAL COMPATIBILITY: Works with any wireless router, gateway, or cable modem with Wi-Fi
WIRED ETHERNET PORT: Simply plug in game consoles, streaming players, or other nearby wired devices using the one 10/100M port for maximum speed
SAFE & SECURE: Supports WEP and WPA/WPA2 wireless security protocols
SIMPLE TO SETUP: Press the WPS button to connect to your router. Use the NETGEAR Wi-Fi Analyzer app for optimal location
System Requirements : 2.4 and/or 5GHz 802.11ac & a/b/g/n wireless router or gateway Microsoft Internet Explorer 8.0, Firefox 20 or Safari 5.1 or Google Chrome 25.0 browsers or higher

From the manufacturer

Up to 1200Mbps wireless speed for HD streaming and gaming.

Plug into a wall outlet for a sleek solution that extends your router's range and stays out of sight.

Intelligently selects between dual bands to minimize interference and maximize speed for your smart wireless devices.

Connect to your existing router with one button press, connect devices to your network, and you’re done.

One 10/100M Ethernet port lets you easily connect a nearby wired device for faster transfer and uninterrupted connection.

Works with any WiFi router for hassle-free reliability.

WiFi Range & Performance	Good	Good	Better	Better	Best	Ultimate
Added WiFi Coverage	600 sq.ft.	1,000 sq.ft.	1,200 sq.ft.	1,500 sq.ft.	1,800 sq.ft.	2,000 sq.ft.
# Connected Devices	Up to 10	Up to 15	Up to 20	Up to 25	Up to 30	Up to 40
Bandwidth	Single-Band Up to 300Mbps	Dual-Band Up to 750Mbps	Dual-Band Up to 1200Mbps	Dual-Band Up to 1750Mbps	Dual-Band Up to 1900Mbps	Tri-Band Up to 2200Mbps
Best for Internet Speed	Up to 10-20Mbps	Up to 20Mbps	Up to 25Mbps	Up to 50Mbps	Up to 100Mbps	Up to 250Mbps
HD Streaming	Good	Good	Better	Better	Best	Ultimate
Online Gaming	Good	Good	Good	Better	Better	Best
Seamless Roaming with One WiFi Name	✓	✓	✓
Tri-band for 2x Speed	✓
Universal Router Compatibility	✓	✓	✓	✓	✓	✓

Item model number	EX6120-100UKS
Are Batteries Included	No
Memory Technology	SO-RIMM
Hard Disk Description	Flash Memory Solid State
Guaranteed software updates until	unknown
RAM Size	1
Processor Brand	AMD
Wireless Type	802.11n, 802.11b, 802.11a, 802.11g
Product Dimensions	5.52 x 6.72 x 3.9 cm; 131.54 Grams
Hard Disk Rotational Speed	1
Maximum Memory Supported	1 GB
Frequency band class	Dual-Band
Graphics RAM Type