New Comers

AC650 Nano Wireless Dual Band USB Adapter

Dual Band Wi-Fi Speed —  Speeds up to  433 Mbps (5 GHz) + 200 Mbps (2.4 GHz)1

Plug and Play — With the built-in inbox driver by Windows operation systems, you just need to plug into your computer and play.

Nano Size— A compact, convenient solution to make your device wireless. Much smaller than a regular USB flash drive.

Improved Security — The latest security enhancement, WPA3, provides enhanced protection in personal password safety2

Windows Compatible — Supported operating system: Windows 10, 11 (32/64bit)

Powerful Performance in Miniature Size

AC650 Nano Wireless Dual Band USB Adapter


Dual Band



433 Mbps on 5 GHz

200 Mbps on 2.4 GHz1

WPA3 Security2

Compatible with Windows 11

Miniature Size

Plug and Play without CD

High Speed Dual Band Wi-Fi Connections

The MA20N combining 200 Mbps on 2.4 GHz (perfect for surfing and emailing) and 433 Mbps on 5 GHz (ideal for HD streaming and gaming), so that you have the flexibility to allocate your devices to dedicated networks to do more at the same time.1


    433 Mbps on 5 GHz


    200 Mbps on 2.4 GHz

Miniature Size

With its ultra-compact design, the MA20N is extremely convenient for use both at home and on the road. All you need to do is connect this miniature adapter to a computer’s USB port. You can then leave it plugged in without worrying about it falling out or getting lost.

15mm 19mm 7mm

Plug and Play, No More Configuration

With the built-in inbox driver by Windows operation systems, you just need to plug the MA20N into the computer and then enjoy the fast wireless network in seconds.

Compatible with Windows Operating System

MA20N fully supports the latest Windows 11.


Windows 11/10 (32/64 bit)


1 Maximum wireless signal rates are the physical rates derived from IEEE Standard 802.11 specifications. Actual wireless data throughput and wireless coverage, and number of connected devices are not guaranteed and will vary as a result of network conditions, AP limitations, and environmental factors, including building materials, obstacles, volume and density of traffic, and AP location.
2 Use of WPA3 requires APs to also support the corresponding feature. To use WPA3, you may need to upgrade the drivers which can bedownloaded on the official website of MERCUSYS.
The functionality of MA20N may be restricted on some computing systems and platforms. Please try to update the device's driver for feature compatibility.

Wireless Standards

IEEE 802.11ac, IEEE 802.11a,
IEEE 802.11n, IEEE 802.11g, IEEE 802.11b


5 GHz
2.4 GHz

WiFi Speeds

Up to 433 Mbps on 5 GHz

Up to 200 Mbps on 2.4 GHz

Reception Sensitivity

11a 6Mbps: -95dBm
11a 54Mbps: -78 dBm
11ac VHT20 MCS8: -72 dBm
11ac VHT40 MCS9: -68.5dBm
11ac VHT80 MCS9: -64.5 dBm
11g 6Mbps: -95.5 dBm
11g 54Mbps: -79 dBm
11n HT20 MCS7: -76 dBm
11n HT40 MCS7: -74 dBm

Wireless Security





USB 2.0

Antenna Type

1 Internal Antenna

Package Contents

AC650 Nano Wireless Dual Band USB Adapter (MA20N)

Quick Installation Guide

System Requirements

Windows 11/10 (32/64-bit)