The proliferation of portable computing devices has historically been accompanied by an equally diverse and incompatible array of proprietary power adapters, creating significant issues for consumers and contributing to a growing electronic waste crisis. This scientific review charts the rise of the USB integrated laptop charger adapter as a pivotal solution to this long-standing issue. It presents an in-depth analysis of the technological underpinnings, centered on the USB Power Delivery (USB-PD) specification, that enable a universal charging standard. Key enabling technologies, most notably the material science advancements of Gallium Nitride (GaN) wide-bandgap semiconductors, are analyzed for their role in creating a new generation of compact, highly efficient, and intelligent power adapters. To ground this technological analysis in practical application, this paper further presents a targeted case study involving a survey of Bachelor of Industrial Technology (BIT) students to identify tangible user needs. The results of this survey, which indicated a strong demand for integrated USB ports on laptop chargers, led to the development of a functional proof-of concept prototype, validating the broader market trends discussed. The paper examines the technical evolution of the USB-IF standards, the current technoeconomic landscape, and the persistent challenges in engineering and usability, including protocol fragmentation and safety compliance. Finally, this review looks to the future, assessing the impact of the 240 W Extended Power Range (EPR) of USB-PD 3.1 and the trajectory toward a truly universal and intelligent power ecosystem. It concludes that the USB-integrated adapter represents a critical, user-driven inflection point in consumer electronics, moving the industry from a fragmented past to a standardized, efficient, and interconnected future.