Finding a formal "paper" specifically on the Realtek 8188GU is rare because it is a low-cost, consumer-grade chipset often used in budget USB adapters like the TP-Link TL-WN725N
0x0BDA (Realtek Semiconductor Corp.)Do not confuse with RTL8188CUS (PID 0x8176 ), RTL8188EUS (PID 0x8179 ), or RTL8188FTV (PID 0x818C ). Drivers are not cross-compatible . realtek 8188gu wireless lan 802.11n usb nic driver
: Combines a CMOS MAC, Baseband PHY, and RF in a single 24-pin or 46-pin QFN package. Finding a formal "paper" specifically on the Realtek