The MERCUSYS MU6H AC650 High Gain Wireless Dual Band USB Adapter is a compact Wi-Fi adapter designed to add fast dual-band wireless connectivity to compatible desktop computers and laptops. It supports 802.11ac Wi-Fi with speeds of up to 433Mbps on the 5GHz band and up to 200Mbps on the 2.4GHz band, providing a practical solution for web browsing, HD streaming, online gaming, and everyday wireless networking.
The MU6H features a 5dBi high-gain external antenna designed to improve signal reception and transmission compared with conventional low-gain adapters. The antenna can be adjusted in multiple directions to help optimize wireless performance according to the computer’s position and surrounding environment.
The adapter supports 256-QAM technology on the 2.4GHz band, increasing the theoretical 2.4GHz data rate from 150Mbps to 200Mbps when the wireless router or access point also supports 256-QAM. Dual-band connectivity allows users to select 2.4GHz for broader coverage or 5GHz for higher wireless throughput and reduced interference.
The MU6H uses a USB 2.0 interface and includes a status LED. MERCUSYS provides Windows support from Windows XP through Windows 11, with driver installation required for some older versions of Windows.
Key Features
- AC650 dual-band Wi-Fi
- Up to 433Mbps on 5GHz
- Up to 200Mbps on 2.4GHz
- 5dBi high-gain external antenna
- Adjustable multi-directional antenna
- 256-QAM support
- IEEE 802.11a/b/g/n/ac
- USB 2.0 interface
- Status LED
- Designed for desktop PCs and laptops
- Supports WPA/WPA2 wireless security
- Suitable for browsing, streaming, gaming, and general networking
Specifications
| Specification | Details |
|---|---|
| Brand | MERCUSYS |
| Product | MU6H |
| Product Type | AC650 High Gain Wireless Dual Band USB Adapter |
| Wireless Standards | IEEE 802.11a/b/g/n/ac |
| 2.4GHz Speed | Up to 200Mbps |
| 5GHz Speed | Up to 433Mbps |
| Frequency | 2.4GHz / 5GHz |
| Antenna | 1 × External High-Gain |
| Antenna Gain | 5dBi |
| Antenna Adjustment | Multi-Directional |
| Interface | USB 2.0 |
| LED | Status |
| Wireless Security | WEP / WPA / WPA2 / WPA-PSK / WPA2-PSK / 802.1X |
| Dimensions | 57.8 × 16.8 × 173.4mm |
| Operating System | Windows 11 / 10 / 8.1 / 8 / 7 / XP |
| 256-QAM | Yes |
| Package Contents | MU6H Adapter + Quick Installation Guide |
MERCUSYS’ official specifications confirm the AC650 speeds, 5dBi antenna, USB 2.0 interface, wireless standards, dimensions, security, and Windows compatibility.
Compatibility
The MERCUSYS MU6H is designed for compatible Windows desktop PCs and laptops with an available USB port. MERCUSYS officially lists support for Windows 11, 10, 8.1, 8, 7, and XP. Current support documentation also provides updated drivers for newer Windows versions and different MU6H hardware revisions.
The adapter can connect to compatible 2.4GHz and 5GHz Wi-Fi routers, access points, and wireless networks. Actual wireless speed and coverage depend on the router, network conditions, obstacles, interference, and other environmental factors.
Important: The MU6H is a Wi-Fi adapter, not a Bluetooth adapter. It is intended to provide wireless network connectivity rather than Bluetooth connectivity.
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