In the modern era where electronic devices pursue extreme compactness, high efficiency, and reliability, interface connectors, as critical nodes for device interaction, directly impact the end product's user experience and market competitiveness. The Kinghelm KH-AF90CB-13.6JB USB Type-A Receptacle connector is a high-performance solution born to meet this core demand. Transcending the basic function of connection, it provides a stable, efficient, and space-optimized connection foundation for various electronic devices through its precision recessed mount design, meticulously selected premium materials, and rigorous manufacturing processes.

This receptacle strictly adheres to the universal USB Type-A physical interface standard, ensuring broad compatibility with a vast array of USB peripherals and charging cables. Crucially, it supports both USB 2.0 and USB 3.0 data transfer protocol specifications. This means that engineers incorporating this interface into their designs can meet the needs of low-speed peripherals like keyboards and mice, while seamlessly supporting bandwidth-intensive applications such as external hard drives and high-speed card readers, providing a solid physical layer guarantee for device functionality expansion. Its core design highlight is the recessed mount structure. Fundamentally different from traditional vertical mounting, the main body of the KH-AF90CB-13.6JB is designed to be embedded within the printed circuit board (PCB). The advantages brought by this structure are revolutionary: it significantly reduces the overall protrusion height of the interface on the PCB surface, effectively saving precious Z-axis space within the device. This space-saving characteristic is paramount for ultra-thin consumer electronics (like slim laptops, tablet docks) or industrially dense control modules. Simultaneously, the recessed design allows for flatter, cleaner openings in the device enclosure, enhancing the product's overall aesthetics and structural integrity.

Kinghelm KH-AF90CB-13.6JB Product Image

The foundation of performance lies in the rigorous application of materials science. The KH-AF90CB-13.6JB utilizes high-performance copper alloy for its electrical contacts. These alloys achieve an excellent balance of conductivity, elasticity, and mechanical strength. More importantly, these critical contact surfaces undergo precise gold plating. The superior conductivity and exceptional resistance to oxidation and corrosion of gold are industry consensus. Micron-level gold plating effectively reduces contact resistance between points, ensuring efficient power transmission and minimizing signal attenuation and distortion during transmission. Particularly in scenarios involving small signals or high currents (such as fast charging or high-speed data synchronization), this low-resistance, low-loss characteristic is crucial for maintaining signal integrity and reducing heat generation. The gold plating also significantly enhances the contacts' resistance to environmental moisture, salt spray, and everyday oxidation, providing a critical protective barrier for the connector's long-term stable operation in various demanding or standard environments.

Structural reliability is the core requirement in repetitive plugging/unplugging scenarios. The internal structure of the KH-AF90CB-13.6JB is meticulously designed and validated. Its terminal fixation is robust, and the insulating body material offers excellent dimensional stability and temperature resistance. The plug/unplug guide structure is rationally designed, providing users with clear, smooth force feedback during insertion or removal of a USB plug, preventing stiffness or jamming. This optimized mechanical structure not only enhances user experience but, more importantly, greatly increases the connector's mechanical durability (plug/unplug cycle life). High-quality plastic materials ensure the housing resists cracking and deformation under frequent use, while internal metal contacts maintain lasting contact pressure. Together, they ensure stable and reliable operation throughout the product's expected lifecycle, significantly reducing the risk of device repair due to connector failure.

Kinghelm KH-AF90CB-13.6JB Specification

In terms of electrical performance, this receptacle excels. Its design supports continuous current transmission up to 1.5A, allowing it to easily meet the fast-charging requirements of most current smartphones, tablets, and other mobile devices, as well as USB peripherals like external hard drives or high-power USB fans needing significant power support. For data transfer, thanks to USB 3.0 support, its theoretical data transfer rate reaches 5Gbps, far exceeding USB 2.0's 480Mbps. This high-speed capability is decisive for applications requiring rapid exchange of large data volumes (e.g., HD video transfer, large file backup, high-speed data acquisition). Careful signal path design and shielding within the connector effectively suppress electromagnetic interference (EMI) that can occur during high-speed signal transmission, ensuring the stability and accuracy of data communication.

The KH-AF90CB-13.6JB's 4P (four-pin) single-port design represents the standard USB Type-A interface configuration, offering simplicity and efficiency. Its compact physical dimensions, combined with the space savings of recessed mounting, make it an ideal choice for space-constrained electronic devices. This design flexibility grants it an extremely wide application range: from personal computers (PC motherboard front/rear ports, laptop expansion ports) and home appliances (smart TVs, game consoles) as core peripheral connections, to key output ports in phone chargers, power banks, and multi-port charging docks; from data synchronization and power interfaces in digital cameras, portable speakers, and set-top boxes, to increasingly intelligent automotive central control systems (USB charging/data ports), in-car entertainment devices, and auxiliary interfaces in medical monitoring instruments and industrial control equipment requiring high reliability. It is a foundational component enabling convenient, efficient, and stable connections in modern electronics.

In summary, the Kinghelm KH-AF90CB-13.6JB USB Type-A Receptacle connector is far from a simple passive interface. It embodies the fusion of precision engineering and materials science, offering a comprehensive solution addressing space constraints while pursuing electrical performance and mechanical reliability. Its signature recessed design paves the way for device miniaturization and slimness; the carefully selected gold-plated copper alloy contacts form a solid foundation for efficient, stable power transmission and high-speed data flow; and the durable structure ensures worry-free connections throughout the device's lifecycle. In the seemingly ordinary yet vital field of connectors, the KH-AF90CB-13.6JB, with its balanced and exceptional characteristics, continues to provide indispensable and trustworthy connectivity for consumer electronics, computer peripherals, automotive electronics, and even professional medical and industrial equipment, acting as an efficient and reliable "heart of connection" in the modern electronics manufacturing chain. Its value lies not only in enabling physical connection but also in providing a solid physical guarantee for the functional expansion, performance unleashing, and user experience enhancement of electronic devices.

About Kinghelm

Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.