Wi-Fi CERTIFIED™ ac提供高達數Gbps的資料速率,因此Wi-Fi CERTIFIED ac設備能夠支援要求很高的應用,例如超高清和4K視頻,多媒體傳送以及平板電腦、遊戲裝置、手機和很多其他設備的快速檔傳送。Wi-Fi CERTIFIED ac基於IEEE 802.11ac,也稱為Wi-Fi 5,Wi-Fi CERTIFIED ac設備提供更大的容量、更好的電源管理和更低的延遲,可輕而易舉地處理今天要求很高的應用。

Wi-Fi CERTIFIED ac通過多用戶多輸入多輸出(多用戶MIMO)、更寬的通道以及對4路空間流的支援,提供性能更高的移動體驗。


Wi-Fi CERTIFIED ac以Wi-Fi CERTIFIED n為基礎,運行於5GHz頻段,在這個頻段上,設備可利用更大的頻寬實現更高的資料速率。大多數Wi-Fi CERTIFIED ac產品都是雙頻段的,運行於2.4GHz和5GHz。Wi-Fi CERTIFIED ac設備使用5GHz頻段,而Wi-Fi CERTIFIED n產品使用2.4GHz頻段。雙頻段網路使容量擴大了一倍,因為設備可以使用不那麼擁擠的5GHz頻段處理高性能應用,而用2.4GHz頻段滿足基本需求,例如飆網、運行物聯網(IoT)應用等。


隨著物聯網(IoT)時代的蓬勃發展和超連接時代的迫近,相互連接以及連接到互聯網上的設備越來越小了。這些設備需要很長的電池壽命。Wi-Fi Alliance已經推出節電功能,以使設備能夠受益於與Wi-Fi網路及互聯網的本機連接,而無需擔心功耗問題。Wi-Fi節電功能支援更長的休眠時間,減少了設備與基礎設施過於頻繁的通信需求。這些功能可顯著節省無數市場中使用的Wi-Fi設備的耗電,其中包括智慧家居、智慧城市、工業和醫療保健市場。

  • Wi-Fi CERTIFIED™ ac: dual-band, interoperable, high-performance Wi-Fi®
  • Wi-Fi CERTIFIED Miracast™: Your Content - Now Showing on Screens Everywhere
Wi-Fi Alliance News See All
Product Finder
Wi-Fi CERTIFIED ac certified products
Download Additional Resources
Frequently Asked Questions
  • How does Wi-Fi Alliance help ensure product compatibility and a good user experience for certified products?

    Compatibility and quality are achieved through testing of Wi-Fi products. Consumers should always look for the Wi-Fi CERTIFIED logo to ensure the best user experience possible.

  • What is the benefit of MU-MIMO?

    MU-MIMO is an innovative breakthrough that enables simultaneous communication to multiple devices, improving overall speed and enabling network multitasking.

  • How can I upgrade my device to use wave 2 features?

    Upgrading devices to use wave 2 features is implementation dependent. Some devices can be upgraded through software, but most will require new hardware.

  • What performance advances are enabled by Wi-Fi CERTIFIED ac?

    Wi-Fi CERTIFIED ac enables higher data rates, higher capacity and lower latency.  Products implementing the technology behind Wi-Fi CERTIFIED ac with wave 2 features are capable of multi-gigabit data rates– nearly triple that of devices implementing only wave 1 features.

  • What new applications are enabled with Wi-Fi CERTIFIED ac?

    Wi-Fi CERTIFIED ac handles today’s demanding applications and paves the way for new applications in the future.  Certified-ac devices are more robust and offer a greater user experience including:

    • Transferring an HD movie to a tablet in under 4 minutes
    • Sharing photo albums with friends in seconds
    • Streaming three HD quality videos at one time

    Wi-Fi CERTIFIED ac devices also improve wireless performance in the enterprise in the following ways:

    • Enhanced user experience for teleconference meetings
    • Delivering greater in-office networking coverage – more clients for the same number of APs per office area
    • Projecting graphics, video and audio to a large screen in a conference room or auditorium
  • Are Wi-Fi CERTIFIED ac devices dual-band?

    Wi-Fi CERTIFIED ac operates in the 5 GHz band, but devices support the 2.4 GHz band by integrating Wi-Fi CERTIFIED n.  Dual-band devices switch between the more crowded but popular 2.4 GHz frequency band, to the cleaner 5 GHz frequency band to connect more demanding applications and avoid interference from other devices.

  • Is Wi-Fi CERTIFIED ac interoperable with previous versions of Wi-Fi?

    As with all Wi-Fi CERTIFIED devices, Wi-Fi CERTIFIED ac products are tested to ensure interoperability with legacy Wi-Fi CERTIFIED products. Products must operate in the same frequency band in order to connect.

  • What is WMM?

    Wi-Fi Multimedia, represented by the acronym WMM, is related to Wi-Fi CERTIFIED WMM® programs. These optional certifications provide multimedia enhancements for Wi-Fi networks that improve the user experience for audio, video, and voice applications.