7392:a811 — EW-7811UTC 802.11ac Wireless Adapter

This is the USB identifier for a EW-7811UTC 802.11ac Wireless Adapter manufactured by Edimax Technology Co., Ltd. The vendor ID 7392 is registered to Edimax Technology Co., Ltd with the USB Implementers Forum, and a811 is the product ID that Edimax Technology Co., Ltd assigned to this particular model. When you run lsusb on Linux, this device appears as 7392:a811 Edimax Technology Co., Ltd EW-7811UTC 802.11ac Wireless Adapter.

Linux

$ lsusb
Bus 001 Device 004: ID 7392:a811 Edimax Technology Co., Ltd EW-7811UTC 802.11ac Wireless Adapter

You can filter directly with lsusb -d 7392:a811, or get the full descriptor dump with lsusb -v -d 7392:a811. Kernel messages from dmesg show the same pair as idVendor=7392, idProduct=a811.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_7392&PID_A811
USB\VID_7392&PID_A811&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_7392&PID_A811"

macOS

$ system_profiler SPUSBDataType
    EW-7811UTC 802.11ac Wireless Adapter:
      Product ID: 0xa811
      Vendor ID: 0x7392  (Edimax Technology Co., Ltd)

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

The exact lines this page is generated from, in the upstream source file:

7392  Edimax Technology Co., Ltd
	a811  EW-7811UTC 802.11ac Wireless Adapter

• 7392:7811 EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]
• 7392:7822 EW-7612UAn V2 802.11n Wireless Adapter [Realtek RTL8192CU]
• 7392:a611 EW-7611ULB 802.11b/g/n and Bluetooth 4.0 Adapter
• 7392:a711 EW-7711MAC 802.11ac Wireless Adapter
• 7392:b711 EW-7722UAC 802.11a/b/g/n/ac (2x2) Wireless Adapter [MediaTek MT7612U]
• 7392:b822 EW-7822ULC 802.11ac Wireless Adapter [Realtek RTL8812AU]

See all 12 devices from Edimax Technology Co., Ltd →