Quick Product Finder

Series Overview

Select a product and connector series to see the overview.

MIL-DTL-38999 rugged USB and Ethernet interconnects

EMCA’s rugged data interconnects are based on the MIL‑DTL‑38999 Series III circular connector standard, delivering high-reliability USB and Ethernet connectivity for harsh-environment applications.

These mil-spec interconnect solutions combine modern USB and RJ45 interfaces with the mechanical robustness, environmental sealing, and coupling performance of MIL-DTL-38999 Series III connectors — ideal for defence, aerospace, and industrial systems where reliability is critical.

USB and Ethernet interconnects built to MIL-DTL-38999 Series III standards

Our rugged interconnect range supports USB and RJ45 (Ethernet) data transmission through MIL-DTL-38999 Series III interfaces, enabling reliable high-speed communication in applications exposed to:

  • Shock and vibration;
  • Dust, moisture, and contamination;
  • Extreme temperatures;
  • Frequent mating cycles;
  • Mission-critical reliability requirements.

These solutions are ideal for platforms where circular mil-spec connectors are already specified, or where form-fit-function compatibility is essential.

Typical applications

EMCA’s rugged data interconnects are commonly used in:

  • Defence and military communication systems;
  • Aerospace and avionics platforms;
  • Industrial and transport electronics;
  • Vehicle-mounted and mobile systems;
  • Harsh-environment data acquisition.

All rugged interconnect solutions are engineered around MIL-DTL-38999 Series III circular interfaces, offering:

  • Secure threaded coupling.
  • High environmental sealing capability.
  • Excellent EMI and mechanical performance.
  • Compatibility with established mil-spec cable systems.

Rugged interconnect solutions available

  • RJ45 - X1 Series

    RJ45 - X1 Series

    Secure and reliable high-speed Ethernet connections for harsh environments.

  • USB - X2 Series

    USB - X2 Series

    Durable USB Type A and C connectors designed for dependable data transfer in demanding applications

© Copyright EMCA Interconnect Limited