PCI\VEN_10EC&DEV_B851

Wi-Fi driver

PCI\VEN_10EC&DEV_B851 is the Realtek Semiconductor Co., Ltd. RTL8851BE PCIe 802.11ax Wireless Network Controller, a Wi-Fi device. Without its driver Windows shows a Network Controller with a yellow mark and no wireless networks. Get it from Windows Update or your PC maker first; the chip maker's own package is on support.microsoft.com.

Download from support.microsoft.comFull guide: Find the right Wi-Fi driver

Device details

Hardware IDPCI\VEN_10EC&DEV_B851
Device nameRTL8851BE PCIe 802.11ax Wireless Network Controller
MakerRealtek Semiconductor Co., Ltd. (PCI vendor ID 10EC)
Device typeWi-Fi
Driver guideFind the right Wi-Fi driver

How to install the driver for RTL8851BE PCIe 802.11ax Wireless Network Controller

  1. Confirm the ID. In Device Manager, right-click the device, open Properties, then Details, and pick Hardware Ids. The first line should start with PCI\VEN_10EC&DEV_B851.
  2. Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Wireless drivers are often offered here.
  3. Check your PC maker. Enter your model or serial number on its support site and look under Networking or Wireless.
  4. Use the chip maker's package. Update drivers through Device Manager in Windows (Microsoft) on support.microsoft.com. Our find the right wi-fi driver guide explains which package fits.
  5. Restart and check. Open the Wi-Fi list in the taskbar and connect to your network.

Other Realtek wi-fi IDs

Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.