The KH-IPEX4-SMA-RG081-100mm is a high-performance RF cable developed by Kinghelm, designed specifically for seamless signal transmission between IPEX and SMA interfaces. Utilizing a slim 0.81mm black RF0.81 coaxial cable and a length of 100mm, this product offers a compact structure, efficient signal transfer, and flexible installation—making it an ideal solution for wireless communication in miniaturized devices.

Kinghelm KH-IPEX4-SMA-RG081-100mm Product Image

In terms of structure, one end of the cable features a high-quality I-PEX 0.81 Gen 4 terminal with gold plating, ensuring excellent conductivity and reliable contact. The other end is equipped with a gold-plated SMA female connector (socket type) featuring an 11-tooth detachable design, enhancing corrosion resistance and maintaining stable connectivity over long-term use. A black high-strength heat shrink tube with a 2.0mm outer diameter offers robust protection against bending and abrasion, while also improving EMI shielding performance.

Performance-wise, the KH-IPEX4-SMA-RG081-100mm RF cable delivers outstanding electrical characteristics. It supports a maximum voltage of DC 300V (10ms), with a contact resistance ≤3.0 Ohm—minimizing signal loss and interference to ensure fast and stable data transmission. These attributes make it particularly suitable for applications with high RF signal quality requirements.

This cable is widely used in WiFi modules, GPS systems, Bluetooth devices, NB-IoT and LoRa terminals, and other wireless communication systems. It is especially ideal for space-constrained, performance-critical devices such as drones, smart wearables, industrial controllers, automotive positioning systems, and IoT modules. Thanks to its compact size and excellent performance, it is a preferred choice among manufacturers for antenna connectivity and RF signal transfer.

As a prominent Chinese connector manufacturer, Kinghelm specializes not only in RF cable development and production, but also offers extensive customization services with various interfaces, specifications, lengths, and forms available. Their product line includes IPEX to MCX, IPEX to IPEX, IPEX to U.FL, and more. All Kinghelm products undergo rigorous electrical and quality testing to ensure long-term reliability and consistent performance.

Notably, the KH-IPEX4-SMA-RG081-100mm RF cable features a lightweight design, with a total weight of just 3.5g—reducing the burden on devices and enabling flexible routing even in complex system architectures. Its high-quality manufacturing process enhances the cable’s durability and environmental resistance, making it well-suited for demanding industrial and outdoor applications.

Kinghelm KH-IPEX4-SMA-RG081-100mm Specification

In conclusion, the KH-IPEX4-SMA-RG081-100mm is more than just an RF cable—it represents Kinghelm’s dedication to precision, performance, and quality. Whether for engineering development or mass production, this cable provides a reliable solution for high-frequency transmission and stable connectivity.

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.

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