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Tenda U9 USB Wi-Fi adapter, small black rectangular dongle

Tenda

Tenda U9 USB 2.0 AC650 Dual Band Wi-Fi Adapter

SKU CH-KWBE-QYTMV MPN U9

Dual-band USB 2.0 Wi-Fi adapter delivers up to 650 Mbps with 5 GHz at 433 Mbps and 2.4 GHz at 200 Mbps, auto-installs on Windows XP through 10

  • Interface typeUSB 2.0
  • Supported standardsIEEE 802.11ac, IEEE 802.11a/b/g/n
  • Wireless speedUp to 650 Mbit/s
  • Security features64 / 128-bit WEP, WPA-PSK / WPA2-PSK, WPA / WPA2
  • Radio bands2.4 GHz / 5 GHz
  • Transmit power< 20 dBm (EIRP)
  • Dual-band Wi-Fi up to 650Mbps for smooth streaming
  • Auto-install driver starts working the moment you plug it in
  • MU-MIMO technology raises data-transfer efficiency on busy networks
  • Tiny 0.30" x 0.73" x 1.45" design fits any USB port
  • Works with Windows XP through Windows 10

Dual-Band USB 2.0 Adapter

The Tenda U9 is a compact USB 2.0 wireless adapter that adds dual-band 802.11ac Wi-Fi to desktops or laptops. It delivers combined data rates up to 650Mbps, with 433Mbps on 5GHz and 200Mbps on 2.4GHz. The device suits users who need a simple wireless upgrade for HD streaming or online gaming on legacy Windows systems.

Internal PIFA Antenna & Auto-Install

An internal PIFA antenna keeps the profile tiny at just 0.30" x 0.73" x 1.45" without external parts to snag or break. The USB 2.0 interface plugs directly into any standard port and triggers an automatic driver installation on supported Windows versions. Security options include 64/128-bit WEP and WPA/WPA2-PSK encryption for protected connections.

Replaces Built-In Single-Band Radios

This adapter upgrades older PCs that rely on single-band 2.4GHz adapters or lack wireless entirely. The jump is worthwhile when the router broadcasts a 5GHz network and the user wants reduced interference for video calls or gaming. It is not suited for machines that already support 802.11ac wave 2 or newer Wi-Fi standards, nor for Linux or macOS environments without driver support.

How it compares

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

Price $12.99
Cheaper than about 75% of the 1,565 comparable items (median $18.99).

Specifications

Product
Brand nameTenda
Model nameU9
Product typeUSB Wi-FI Adapter
Connectivity
Supported standardsIEEE 802.11ac, IEEE 802.11a/b/g/n
Wireless speedUp to 650 Mbit/s
Radio bands2.4 GHz / 5 GHz
Transmit power< 20 dBm (EIRP)
Antenna configurationInternal PIFA Antenna
Ports & slots
Interface typeUSB 2.0
Size & build
Product dimensions0.3 in × 0.73 in × 1.45 in
Shipping weight0.02 kg
Package size76 × 69 × 18 mm
In the box
In the box1 x Wireless Adapter U9
1 x Install Guide
Environment & compliance
Temperature rangeOperating Temperature: 0 to 40 degree Celsius (32 to 104 degree Fahrenheit)
Storage Temperature: -40 to 70 degree Celsius (-40 to 158 degree Fahrenheit)
Humidity rangeOperating Humidity: 10% ~ 90% non-condensing
Storage Humidity: 5% ~ 90% non-condensing
More details
Security features64 / 128-bit WEP, WPA-PSK / WPA2-PSK, WPA / WPA2

Questions about this item

Does the USB 2.0 interface limit the U9's 650 Mbps rating?

The adapter supports up to 650 Mbps combined across both bands; actual throughput depends on the host port and wireless conditions.

How much space does the U9 need beside the USB port?

The adapter measures 0.30" x 0.73" x 1.45" and uses an internal PIFA antenna, so it sits flush without protruding elements.

What is the first step after plugging in the U9 on Windows?

Windows 7 through 10 will load the internal driver automatically; wait for the completion prompt before opening the network list.

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