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Small black USB stick with Bluetooth 5.1 logo

IOGEAR

IOGEAR GBU621 Bluetooth 5.1 USB adapter

SKU CH-R4X0-FDP3A MPN GBU621

Compact USB adapter adds Bluetooth 5.1 connectivity to Windows 11, 10 and 8 desktops and laptops

  • Product typeAccessories
  • Bluetooth 5.1 for faster, more stable wireless connections
  • Works with Windows 11, 10 and 8 for broad OS compatibility
  • Compact USB form factor keeps laptop ports clear
  • Adds wireless audio support for speakers and headsets
  • Simple plug-and-play setup with no extra drivers needed

Compact Bluetooth 5.1 USB adapter

The IOGEAR GBU621 adds Bluetooth 5.1 to a desktop or notebook through a standard USB port. It enables wireless links to speakers, headphones, keyboards and mice without internal hardware changes. The adapter works with Windows 11, Windows 10 and Windows 8 systems.

Suits PCs lacking built-in Bluetooth.

This adapter suits owners of Windows 11, 10 or 8 machines that have no integrated Bluetooth radio. It is not for users who need native Bluetooth on macOS, Linux or Chrome OS because the supplied driver support covers only the listed Windows versions.

Bluetooth 5.1 radio version

The single specification that decides fit is the Bluetooth 5.1 radio. If the peripheral you want to pair requires Bluetooth 5.1 or earlier, this adapter will connect it; if the peripheral demands a newer Bluetooth revision, the GBU621 cannot meet that requirement.

How it compares

Measured against everything we stock in Wi-Fi Cards & USB Adapters, at today’s prices. Recalculated every night.

Price $21.99
Pricier than about 58% of the 1,565 comparable items (median $18.99).

Specifications

Product
Product typeAccessories
Size & build
Shipping weight0.45 kg
Package size173 × 122 × 25 mm

Questions about this item

What does Bluetooth 5.1 mean when I plug this adapter into my laptop?

It enables the latest Bluetooth 5.1 features on Windows 11, 10 or 8, letting you pair speakers, headphones or other peripherals with improved connection stability and range.

Which USB standard does the GBU621 use and what does it limit?

The adapter plugs into any standard USB-A port; the port supplies power and data, so performance is limited by the host controller rather than the dongle itself.

How much space does the GBU621 need to stay plugged in?

Its compact design sits almost flush with the port, so it clears neighbouring sockets and stays out of the way on a crowded laptop or desktop.

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