There are bunch of USB Wireless devices that use the Realtek RTL8811AU chipset. Some have an external antenna and some don't. Also as many of these devices come with the driver on a mini cdrom and people don't have cdrom drives on their computer or laptop these days, you'll need to get it from the internet.
Windows does have generic drivers shipped and installed with Windows update Realtek RTL8811AU but from experience these can have some stability issues. So installing the official drivers is always recommended. If you aren't having issues with the device, there is no reason other than security issues for updating the device.
Realtek 88xx Chipset Driver (Install Package)
File: RTLWlanU_WindowsDriver_1030.44.0727.2022.zip
6c4a69a8aed4737aecf4833ca217a7412f975416f8ea0fed22211a4deac4df05
Realtek 88xx Chipset Driver (Install Package)
File: RTLWlanU_WindowsDriver_1030.40.0128.2019_Drv_3.00.0035_UI_1.00.0305.L.zip
a8a765718cde86548c324c965f8bb81e59cc7a4d8ab2be1a0aef0fb85718e7e7
Realtek 88xx Chipset Driver (Install Package)
File: RTLWlanU_MacOS10.11_MacOS10.15_Driver_1830.32.b13_1827.4.b36_UI_5.0.9.b6.zip
f7f791c81ad25a7529dc780cba59e3e810f343e2ce037e0879a159a762031cdd
Realtek 88xx Chipset Driver (Install Package)
File: 0002-Realtek_WindowsDriver_1030.25.0701.2017.zip
dac755a0cecbdbe2818313f2049dfb140c98667ca08fe71b0478759c85d46c3a
Realtek RTL8811AU Wireless Driver
File: rtl8811au_win10.zip
69a836875abfe871d78e02227c8e46a0e4661587d488857647590ebcec1474a9
