There are many USB Wirless devices that have the RTL8811cu chipset, so the device may not look like the illustration. 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 generic drivers for the Realtek RTL8811cu provided by Microsoft may cause stability issues or intermittently cause it to malfunction and causing instability in Windows. So, installing the drivers from Realtek are important if you are experiencing any issues like these.
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: Realtek-10x64-U_1030.31.1113.2018-drp.zip
5f3b3d53e3263e7c1077a0e2cd69c095d4840e9f9ca5e455ed1b5f5b4e3d11a9
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: Realtek-10x86-U_1030.31.1113.2018-drp.zip
eacef403529420f10ccb4a64e4826d5f2f4fb84b8328aca400c1083082d76de6
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: Realtek-81x64-U_1030.29.0629.2018-drp.zip
526603ab0766bc17b24011aee1cee7193195141c581c68a812f0473fc03b98c3
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: Realtek-81x86-U_1030.29.0629.2018-drp.zip
612b6492e5a3eb109067cc038a014e5ebf1e198d9b328076a74af1b0d5ae417d
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: Realtek-6x64-U_1030.31.1113.2018-drp.zip
30cebbac884d37e4d69c498750c99d0cb03c32a546825a087fef93fd07c16bfc
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: Realtek-6x86-U_1030.31.1113.2018-drp.zip
2132d088d92ca394681826af426e3e876c9af0b84c957017d2f909e434c53f9e
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: Realtek-7x86-U_1030.31.1113.2018-drp.zip
e4dd807bfb1a81cee83d9fccb6383f14dd519fa5b002c9bfd59994996b9b8ab0
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: RTL8811CU_8821CU_WiFi_linux_v5.2.5.3.zip
07d729083f24e6b2bb99320f5e9c51fcec1faaf50ca6ba4768bc991b387f8089
Realtek RTL88xx Wireless LAN 802.11ac USB NIC
File: MacOS10.6-10.14-rtl88xx.zip
6e2737931030d4fa46c2b69de1fcbae022de03a35553cc837394fcb365ce2335
Multi-system compatibility, support Windows 10, 8.1, 8, 7, XP, Vista, Mac.
Original Realtek RTL8811cu chipset inside, easy installation, high signal stability
Up to 1200 Mbps speed, dual band 5.8 GHz (867 Mbps) or 2.4 GHz (300 Mbps)
USB 3.0 interface, compatible with most laptops, desktops, projectors
Suitable for most routers, secure WFA WPA WPA2 WPS2.0 WAPI WiFi
