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Small black USB stick with a hinged external antenna

Graviton

Graviton RT3070 USB 2.0 Wi-Fi adapter 150Mbps 2.4GHz 802.11b/g/n external antenna

SKU CH-F37X-Y7AA9

Adds 150 Mbps 2.4 GHz 802.11b/g/n Wi‑Fi via USB 2.0 with an external antenna

  • Adds Wi-Fi to any desktop or laptop with USB 2.0
  • Reaches 150 Mbps on the 2.4 GHz band
  • Works with 802.11b/g/n networks for broad compatibility
  • External antenna improves signal range and stability
  • Driver support covers Windows XP through Windows 10

What this adapter adds

The Graviton RT3070 USB 2.0 Wi-Fi adapter provides 150Mbps wireless connectivity on the 2.4GHz band using the 802.11b/g/n standard. It connects through a USB 2.0 port and includes an external antenna for signal reception. The device uses the RT3070 chipset and supports Windows XP, 7, 8 and 10 with supplied drivers.

Build fit and freedoms

The adapter plugs directly into any USB 2.0 port, requiring no internal slot or NGFF interface inside the chassis. Its external antenna can be positioned for better reception without opening the case. This frees up internal expansion slots and avoids the need for a compatible motherboard header or antenna routing.

Who this suits and who it does not

This adapter suits users adding basic Wi-Fi to a desktop or laptop lacking wireless hardware, especially where only USB 2.0 ports are available. It is not for buyers who need the 5GHz band, speeds above 150Mbps, or support for newer Wi-Fi standards such as 802.11ac or ax.

Highlights

  • Adds Wi-Fi to any desktop or laptop with USB 2.0
  • Reaches 150 Mbps on the 2.4 GHz band
  • Works with 802.11b/g/n networks for broad compatibility
  • External antenna improves signal range and stability
  • Driver support covers Windows XP through Windows 10

Specifications

No published specifications for this item yet.

Questions about this item

Does the 150Mbps link rate hold up when the RT3070 adapter runs all day?

The 150Mbps rate is the maximum PHY speed; sustained throughput will be lower due to overhead and airtime contention.

How much heat or noise does the USB 2.0 Wi-Fi adapter produce during continuous use?

The adapter has no fan and draws power only from the USB port, so it runs silently and stays barely warm.

What operating system must the host already run for the RT3070 to work without extra drivers?

Windows XP, 7, 8 or 10 are supported with the supplied driver; other OSes may need a separate download.

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