Xtreme N PCI Express Desktop Adapter


  • Product Status (Revision A): End of Life
Ultimate Performace
The D-Link xtreme N™ PCI express (PCIe) desktop adapter (DWA-556) is a 802.11n wireless client that delivers unrivaled wireless performance for your PCI Express-enabled desktop computer. The PCIe interface provides superior performance over a standard PCI interface. This wireless adapter delivers up to 14x faster speeds* and 6x farther range* than 802.11g while staying backward compatible with 802.11g networks. Once connected, you can share a high-speed Internet connection, photos, files, music, videos, printers, and storage.

Get Connected, Stay Connected
The xtreme N PCI express desktop adapter is powered by xtreme N technology and boasts three external antennas to provide superior wireless reception in your home or office. This adapter is designed for use in larger homes and offices, or for users running multiple bandwidth-intensive applications. This adapter enables you to simultaneously make or receive Internet phone calls (VoIP), surf the Web, transfer files, and stream High-Definition (HD) media when connected to an Xtreme N Gigabit Router*. The DWA-556 supports WPA™ and WPA2™ encryption that allow you to connect securely to a wireless network.

Easy to Set Up, Easy to Use
D-Link's quick adapter setup wizard guides you step-by-step through the installation process. Configure this desktop adapter without having to call a networking expert to help you.
With unmatched wireless performance, reception, and security, the D-Link Xtreme N PCI Express Desktop Adapter (DWA-556) is the best choice for easily adding or upgrading wireless connectivity to your PCI Express-enabled desktop computer.

What This Product Does
Connects your PCIe compatible desktop computer to a wireless network to access a high-speed Internet connection, transfer files, and stream media from greater distances around your home or office.

Xtreme N™ Adapter Benefits

  • Delivers up to 14x faster speeds and 6x farther range than 802.11g1
  • Xtreme N technology enables HD video streaming, file sharing, enhanced Internet phone calling (VoIP), and surfing the Web
  • Access secure wireless networks using advanced WPA™ or WPA2™ encryption
  • Easy to install and use with D-Link's new Quick Adapter Setup Wizard
  • Backward compatible with existing 802.11g networks

PCI Express Benefits
  • Up to 50% faster than legacy PCI cards
  • Fits any standard PCI Express slot – x1, x4, x8, or x16
  • Offers increased bandwidth, reliability, and more functionality than a legacy PCI card2

1 When used with the DIR-655 Xtreme N Router.
Maximum wireless signal rate derived from IEEE Standard 802.11g and 802.11n specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, buildings materials and construction, and network overhead, lower actual data throughput rate. Environmental factors will adversely affect wireless signal range. Wireless range and speed rates are D-Link RELATIVE performance measurements based on the wireless range and speed rates of a standard Wireless G product from D-Link. Maximum throughput based on D-Link 802.11n devices.
2 Maximum throughput and performance derived from PCI and PCI Express specifications.
Wireless N
Wireless speed
300 Mbps 2.4 GHz
This product was phased out on: 14/08/2018
This product's last date of support is on: 13/08/2020
How to connect to wireless in Windows 8
How to connect to wireless in Windows 7
Version Date Type File Size
Datasheet (English) - PDF 1.33mb Download
Version Description Date Type File Size
Manual (English) Manual (English) - PDF 8.86mb Download
Version Description Date Type File Size
Quick Installation Guide (Multilingual) - PDF 1.71mb Download
Version Description Date
DEU_Drivers_2_20b02_RevA Windows Drivers 03.10.2014 Download
DEU_Drivers_v2_11b03_RevA Windows Drivers 26.7.2012 Download
Version Description Date

CE declaration

20.5.2014 Download