PCI Express Wireless N Adapter - 300 Mbps PCIe 802.11 b/g/n Network Adapter Card – 2T2R 2.2 dBi

Add high speed Wireless-N connectivity to a desktop PC through PCI Express

Product ID: PEX300WN2X2

5 stars (1 reviews) |
  • 2 Transmitter/2 Receiver (2x2:2) antenna configuration
  • Compliant with IEEE 802.11n standard, with support for up to 300Mbps of wireless data bandwidth
  • Backward compatible with IEEE 802.11b/g standards for up to 11/54Mbps connections respectively with Wireless-B and Wireless-G networks
Your price

In stock: CA: 121 | US: 3496

Where to buy StarTech.com products
Where to buy

The PEX300WN2X2 PCI Express Wireless N Card (PCIe x1) adds high speed wireless network connectivity to almost any PCI Express-enabled desktop/workstation PC. Using a 2T2R (2 Transmitter/2 Receiver) design over the 2.4GHz frequency, this PCIe wireless card provides up to 300Mbps of data bandwidth over an 802.11n network, while improving signal reception and range.

Backward compatible with 802.11b/g networks (11/54Mbps), this WiFi N adapter offers a versatile wireless networking solution with support for standard and advanced security options such as WEP, WPA and WPA2, along with wireless Quality of Service (QoS) support and quick and easy setup through WPS.

This easy-to-install PCI Express 2.0 card is backed by StarTech.com's 2-year warranty and free lifetime technical support, making for an excellent wireless upgrade or first-time setup option.


  • Add wireless-N networking capabilities to a PCI Express-enabled desktop PC
  • Connect a remote workstation PC to a wireless-N network, in environments where running network cables is not feasible

The StarTech.com Advantage

  • PCI Express 2.0 and 802.11n compliance ensure a fast, reliable wireless-N network connection, while still being able to connect to older wireless b/g networks
  • Support for the latest wireless network security protocols and QoS, ensures a safe and efficient network experience
  • Includes both a full and low profile/half-height bracket for installation into any sized desktop computer

Partner Numbers

  • Ingram Micro Canada 95691S
  • Tech Data Canada 1666BM
  • SYNNEX Canada 4927855
  • ASI Distribution Canada 132309
  • D&H Canada PEX300WN2X2CA
  • UPC 065030844482


  • Windows 8 logo
  • Windows 7 logo
  • Linux logo
  • Windows 10 logo
  • Windows 11 logo
Windows® XP, Vista, 7, 8, 8.1, 10, 11
Windows Server® 2003, 2008 R2
Linux 2.6.32 to 4.11.x LTS Versions only


Warranty Information Warranty 2 Years
Connector(s) 2 - Connector Type(s) RP-SMA (Coax, Reverse Polarity SubMiniature A)
Environmental Operating Temperature -10°C to 70°C (14°F to 158°F)
Storage Temperature -20°C to 70°C (-4°F to 158°F)
Humidity 5% ~ 95% RH
Hardware Interface Wireless Ethernet
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Antenna Configuration 2x2:2 (TxR:S)
Industry Standards IEEE 802.11b, IEEE 802.11g, IEEE802.11n
Chipset ID Ralink - RT5392
Indicators 1 - LED Indicators Link/Activity (green)
Packaging Information Package Height 1.4 in [35 mm]
Package Length 6.5 in [16.5 cm]
Shipping (Package) Weight 5.6 oz [158 g]
Package Width 5.5 in [14 cm]
Package Quantity 1
Performance Maximum Data Transfer Rate 802.11n: 300 Mbps
Bandwidth 20/40 MHz
Full Duplex Support Yes
Frequency Range 2.4 GHz ~ 2.484 GHz
Security Features WEP Data Encryption
WPA and WPA2-PSK Data Encryption
WPA and WPA2 Enterprise Data Encryption
Supported Protocols CSMA/CA
Physical Characteristics Weight of Product 1.3 oz [38 g]
Material Steel
Product Length 3.0 in [75 mm]
Product Width 1.9 in [49 mm]
Product Height 0.7 in [1.8 cm]
Software OS Compatibility Windows® XP, Vista, 7, 8, 8.1, 10, 11
Windows Server® 2003, 2008 R2
Linux 2.6.32 to 4.11.x LTS Versions only
What's in the Box 1 - Included in Package PCI Express Wireless Networking Card
Low Profile Bracket
Driver CD
Instruction Manual
2 - Included in Package Antenna


Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)




Product Support

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Frequently Asked Questions


Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver:

  1. Download the latest drivers from the StarTech.com website (http://www.startech.com/Support). You can find the part number and product ID on the product’s packaging.

Note: Windows will typically save the files to the Downloads folder that is associated with your user account (for example, C:\Users\your_name\Downloads).

  1. Once the download is complete, right-click the zip folder that you downloaded, select Extract All, and follow the on-screen instructions.
  2. Right-click Setup.exe.
  3. Click Run as Administrator.

Note: If the Run as Administrator option is not available, you might be attempting to run the installer from within the zipped file. Extract the files using the instructions in Step 2.

  1. During the installation, you will be prompted to install only the drivers or also the
    Ralink WLAN Utility software. If you wish to use the built-in Windows utility to set up your wireless connection, only install the drivers. If you do not wish to use the built-in Windows Utility (Zero Configuration Utility), install the Ralink WLAN Utility software.

Note: You can switch to using the Windows Utility at any time.

  1. Restart the computer when prompted.
  2. Your computer will automatically complete the driver installation and your device should be ready to use.

How To

To confirm that Windows detects your expansion card, complete the following:

  1. Press the Windows key+R, type devmgmt.msc, and press Enter.
  2. In Device Manager, under the appropriate heading, confirm that your expansion card is listed and that there isn't an exclamation mark next to it.  For example, a USB controller card would be under Universal Serial Bus controllers.

Your expansion card is listed according to the name of the chipset. To determine the name of the chipset of your expansion card, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

(1 reviews)
5 out of 5 stars
  • 5 (1)
  • 4 (0)
  • 3 (0)
  • 2 (0)
  • 1 (0)
Tell us what you think of this product.
Need a little help getting started?

Check out our review guidelines.

1 - 1 of 1 Reviews
(5 Stars)


By: jotamas2007 - 02-22-2021
muy rapido y bueno para descargar archivos pesados
| Helpful?
Back to top