This article covers Futheda RP-SMAオス→RP-SMAメス バルクヘッドマウント WiFi 空中アンテナ延長ケーブル RG316 同軸ケーブル 1m.

Overview

The Futheda RP-SMA Male to RP-SMA Female Bulkhead Mount WiFi Antenna Extension Cable is a practical accessory for relocating antennas on devices like wireless routers, PCIe WiFi cards, and USB adapters. It comes as a pair of 1-meter (3-foot) cables using RG316 coaxial cable with 50-ohm impedance. The connectors are RP-SMA (reverse polarity SMA), meaning the male connector has a center pin while the female has a socket—this is standard for many consumer WiFi antennas.
This cable set allows you to move an antenna away from a metal chassis, behind furniture, or through a panel using the bulkhead mount on the female end. The pure copper connectors ensure reliable signal transmission, and the RG316 cable is flexible enough for tight routing.

Connectivity & Compatibility

The cable is designed for RP-SMA interfaces. The male RP-SMA end connects to the device’s antenna port, and the female bulkhead mount end connects to a standard RP-SMA antenna (typically a male antenna base). The bulkhead design lets you secure the female connector to a panel or chassis cutout (requires a hole of appropriate diameter, not included).
Compatible with:

  • Desktop WiFi cards (Mini PCIe / PCIe) that use RP-SMA connectors
  • USB WiFi adapters with detachable antennas
  • Wireless routers and access points
  • IP security cameras with external antenna ports
  • FPV video transmitters and receivers (2.4/5.8 GHz)
  • Industrial IoT gateways and M2M terminals
    Note: This cable will NOT fit standard SMA connectors (non-reverse polarity). Always verify your device uses RP-SMA male ports before purchase.

Product Info

The Futheda extension cable is available on online retailers as a third-party accessory. The set includes two 1-meter cables. As of September 2026, the price is around ¥3,500 for the pair, placing it in the budget segment. The cable uses RG316 coaxial material with 50-ohm rating, and the connectors are plated copper for corrosion resistance.
Warranty and documentation are not specified by the seller, so this is a basic no-frills product. The cables are lightweight (21g per pair) and easy to store.

Best Use Cases

  • PC enthusiasts building a WiFi-enabled desktop: If your motherboard or WiFi card has RP-SMA antenna ports that are blocked by the case, this cable lets you relocate the antenna outside for better reception. The bulkhead mount can be attached to a rear expansion slot bracket (if you have an antenna pass-through bracket). Avoid this if your card uses standard SMA.
  • Home security camera installers: For IP cameras with detachable antennas, this cable allows you to position the antenna in a spot with stronger WiFi signal, e.g., outside a metal junction box. The bulkhead helps keep the connection secure.
  • FPV drone pilots using ground stations: Use the cable to move a receiver antenna away from the video monitor to reduce interference. The 1-meter length is handy for table setups. Not ideal for weight-critical airborne applications because the cable adds weight and risk of disconnection.
    The cable is not suitable for outdoor exposed use without weatherproofing, nor for applications requiring a longer reach (1m is fixed).

Product Disclosure (Amazon)

  • Manufacturer: Futheda
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0CTC5CSW9
  • Note: This article covers a manufacturer-made product based on Amazon listing details.