In an era where electronic devices relentlessly pursue thinner profiles, greater compactness, and higher performance, the spatial arrangement of internal components and connection reliability have become critical design bottlenecks. Addressing this core challenge, the Kinghelm KH-3.0AF90CB-14.2SMT USB 3.0 Board-to-Board SMT Bezel-Free Connector emerges as a sophisticated solution. Leveraging its innovative 90-degree right-angle design, efficient Surface Mount Technology (SMT), and unique "bezel-free" construction, it delivers premier space optimization and guaranteed high-speed data transfer for modern electronics.

Kinghelm KH-3.0AF90CB-14.2SMT USB 3.0 Product Image

The core innovation lies in its 90-degree right-angle design. Unlike traditional vertical connectors that consume valuable Z-axis height, the Kinghelm KH-3.0AF90CB-14.2SMT ingeniously rotates the interface orientation by 90 degrees. This fundamentally alters the connector's spatial footprint on the PCB, dramatically reducing its projection height in the vertical plane. Within the confines of smartphones, ultra-thin laptop motherboards, or space-critical automotive central control modules, this design liberates vital real estate. It creates essential room for battery expansion, thermal management solutions, or other functional components, directly enabling sleeker, more compact industrial designs.

Manufacturing integration is streamlined through its SMT (Surface Mount Technology) board-to-board mounting process. This ensures full compatibility with highly automated pick-and-place assembly lines, significantly boosting production efficiency, assembly consistency, and lowering labor costs and error rates. Crucially, the "board-to-board" characteristic means the connector body sits partially recessed or flush-mounted against the PCB surface after soldering, rather than standing upright like through-hole components. This ultra-low profile design further compresses internal device stack height, becoming an indispensable element for achieving ultra-thin devices. Simultaneously, SMT soldering creates robust solder joints with high mechanical strength and reliable electrical connections, forming a solid foundation for high-speed signal integrity.

Particularly noteworthy is its "bezel-free" design philosophy. This is not merely an aesthetic choice but a functional optimization born from understanding real-world assembly challenges. Traditional connector housings can sometimes feature micro-burrs or sharp edges. During high-speed automated placement or subsequent manual assembly, these can easily snag or scrape against adjacent cables, flexible printed circuits (FPCs), or other delicate components, causing potential damage or signal interference. The KH-3.0AF90CB-14.2SMT mitigates this risk through precision tooling and manufacturing, ensuring smooth, flush edges. This significantly enhances overall assembly yield, an advantage that becomes even more critical on densely packed, high-integration boards where components jostle for space.

Performance remains the cornerstone of any connector. This product strictly adheres to the USB 3.0 (SuperSpeed USB) standard, supporting theoretical data transfer rates up to 5 Gbps. This readily meets the demanding bandwidth requirements of applications like HD video streaming, rapid large file backups, and high-speed peripheral connections. Electrical performance is equally uncompromising: a rated operating voltage of 30VDC and current of 1.5A caters to mainstream peripheral power needs; contact resistance is kept to a maximum of 30 mΩ, minimizing power loss and heat generation; a withstand voltage of 100VAC @ 50/60Hz and a minimum insulation resistance of 100 MΩ @ 500VDC provide a reliable safety barrier; and a high mating durability of 1500 cycles (mating force max 35N, extraction force 5~35N) ensures longevity under frequent use. These parameters collectively establish its core competency in high-speed, stable, and secure data transmission.

Precisely because of its combined strengths in spatial efficiency, manufacturing compatibility, and reliable performance, the KH-3.0AF90CB-14.2SMT connector demonstrates broad applicability across modern electronics. In consumer electronics, it is an ideal choice for internal high-speed interfaces in smartphones, tablets connecting to docks or external storage, and compact gaming consoles. Within computers and peripherals, it is widely integrated into ultra-thin laptop motherboards, all-in-one PCs, high-performance wireless receiver modules for keyboards/mice, and display driver boards requiring discrete interfaces. Automotive electronics impose even stricter demands on reliability and space; this connector reliably serves in critical roles within infotainment head units connecting external modules, HD dashcam main boards, and circuitry inside smart vehicle chargers. Industrial environments equally benefit, finding it dependable in automation control boxes, data acquisition terminals, precision test instruments, and compact surveillance camera modules.

Kinghelm KH-3.0AF90CB-14.2SMT USB 3.0 Specification

In conclusion, the Kinghelm KH-3.0AF90CB-14.2SMT USB 3.0 Board-to-Board SMT Bezel-Free Connector is far more than a simple interface component. It represents an intelligent convergence of spatial constraints and performance requirements – the 90-degree right-angle design liberates Z-axis space, SMT board-to-board mounting enables efficient automation and ultra-thin profiles, the bezel-free design mitigates assembly risks, and robust USB 3.0 performance guarantees high-speed, stable data transfer. As the relentless drive towards smaller, smarter, and higher-performing devices continues, such highly optimized connectivity solutions will remain pivotal, providing fundamental support for the innovative design of next-generation electronics.

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.