SMA Female to U.FL Extension Cable - 7cm RG178
by RMRC

The SMA Female to U.FL Extension Cable (7cm, RG178) is a premium RF coaxial pigtail designed to route high-frequency wireless signals from internal micro-electronics to an external antenna. It bridges the gap between tiny onboard surface-mount connectors and heavy-duty, standard-sized antenna hardware.

This cable features a gold-plated SMA Female bulkhead connector with a 2-hole mounting flange, allowing you to bolt it securely to a drone frame, project enclosure, or product chassis. The opposite end is terminated with a snap-on U.FL (IPEX) mini connector. Built with high-durability RG178 coaxial wire, this 7cm lead provides excellent thermal stability, minimal signal loss, and high flexibility for tight spaces. It is widely used in FPV drone builds, custom sUAS airframes, and commercial wireless hardware to connect micro video transmitters (VTX) or radio receivers to standard SMA antennas.

Technical Specifications

• Product Type: RF Coaxial Pigtail Adapter Cable

• Connector A: SMA Female with 2-Hole Mounting Flange/Bulkhead

• Connector B: U.FL (IPEX MHF1 Compatible)

• Cable Type: RG178 Coaxial Wire

• Cable Length: 7 cm (70 mm)

• Impedance: 50 Ohm (Standard RF)

• Frequency Capabilities: DC up to 6 GHz (Optimized for 2.4 GHz & 5.8 GHz telemetry/video)

• Plating: Gold-Plated Brass Connectors for maximum conductivity and corrosion resistance

• Mounting Style: Chassis Flange Mount (screws not included)

What Is Included

• (1) SMA Female Flange to U.FL (IPEX) 7cm RG178 Coaxial Extension Cable