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Compact dual-band USB Wi-Fi adapter with matte black finish

SMUGDESK

SMUGDESK MERCURY 650M 11AC DualBand USB Wi-Fi adapter

SKU CH-KY8S-B8FKW

Adds dual-band Wi-Fi to desktops and laptops via USB, reaching 650 Mbps on 802.11ac with 2.4 GHz and 5 GHz support for Windows XP, 7, 8, 10

  • Dual-band 2.4 GHz and 5 GHz for flexible coverage
  • 650 Mbps 802.11 AC speed for smooth streaming
  • Mini USB design stays plugged in without blocking ports
  • Works with Windows XP, 7, 8, 10 on 32-bit and 64-bit
  • Simple driver install adds Wi-Fi to older desktops and laptops

SMUGDESK MERCURY 650M 11AC USB Wi-Fi Adapter

This SMUGDESK MERCURY 650M 11AC dualband USB adapter adds 802.11AC wireless connectivity to desktops and laptops lacking a built-in module. It suits home and office users who need a simple internet upgrade for older Windows systems. The compact receiver plugs directly into a USB port without blocking adjacent sockets. It supports both 32-bit and 64-bit versions of Windows XP, 7, 8 and 10.

Dualband 2.4GHz and 5GHz operation

The adapter operates on two distinct frequency bands to match different network conditions. The 5GHz band delivers a faster transmission rate with less signal interference, making it suitable for online video streaming, web browsing and light gaming. The 2.4GHz band provides broader signal penetration and wider coverage for general household network access across multiple rooms. Users can select the band that best fits their current environment and distance from the router.

650Mbps theoretical wireless speed

The single specification that determines suitability is the 650Mbps total theoretical wireless speed under the 802.11AC standard. This throughput ceiling defines the maximum data rate available for streaming, downloads and latency-sensitive tasks. Buyers whose internet plan or local network traffic regularly exceeds this bandwidth will find the adapter becomes the bottleneck. It is not for users who require higher sustained throughput for heavy multi-device transfers or competitive gaming.

Highlights

  • Dual-band 2.4 GHz and 5 GHz for flexible coverage
  • 650 Mbps 802.11 AC speed for smooth streaming
  • Mini USB design stays plugged in without blocking ports
  • Works with Windows XP, 7, 8, 10 on 32-bit and 64-bit
  • Simple driver install adds Wi-Fi to older desktops and laptops

Specifications

No published specifications for this item yet.

Questions about this item

Will the USB port or driver need replacement after long-term use?

The adapter plugs directly into a standard USB port with no moving parts; driver updates are available for Windows XP, 7, 8 and 10 in both 32-bit and 64-bit versions.

What limits the 650 Mbps link rate during continuous transfers?

The 802.11ac dual-band radio tops out at 650 Mbps theoretical throughput; real-world speed drops with distance, obstacles and channel congestion on either the 2.4 GHz or 5 GHz band.

How warm does the mini adapter get when streaming all day on 5 GHz?

The compact housing has no active cooling; it runs warm under sustained 5 GHz loads but stays within normal USB device temperature limits for continuous operation.

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