Given that you can buy a USB 3.0 AC1200 adapter for $15, is the RTL8188CU obsolete? Not entirely.
1T1R (1 Transmit, 1 Receive) with a single spatial stream. Interface: USB 2.0 (backward compatible with USB 1.1). realtek rtl8188cu wireless lan 80211n usb 20 network adapter
The adapter is based on a highly integrated single-chip controller that combines a MAC, a 1T1R (1 Transmit, 1 Receive) capable baseband, and RF. Given that you can buy a USB 3
Here is the secret sauce: The RTL8188CU is the AK-47 of Wi-Fi dongles for DIY projects. a 1T1R (1 Transmit
It is sufficient for light tasks like web browsing, email, and standard-definition video conferencing.