Santa Clara, CA – August 29, 2017 - The RCx Multi-Source Agreement (MSA) announced today the publication of Revision 1.0 of its RCx connector and cable system specification. The updated document is available at

The RCx MSA connector and cable system is designed specifically for rack-based interconnects, and provides a simple, cost effective, low power and modular interconnect solution.  RCx is a passive, copper only high-density cabling family designed for server adapters and network switch applications. There are three RCx configurations – RCx1, RCx2 and RCx4, corresponding to 1, 2 or 4 lane interface options. The unique modular nature of the RCx interface permits four RCx1, two RCx2 or a single RCx4 cable to be inserted into an RCx4 receptacle, enabling a mix and match approach to provisioning server connectivity without stranding bandwidth due to the blocking experienced when using depopulated multi-lane interfaces. RCx supports both 25 Gb/s NRZ and 50 Gb/s PAM4 per lane signaling, for a maximum aggregate rate of 200 Gb/s and is also compatible with recent 802.3 standards.

The streamlined RCx MSA design eliminates the need for costly active electrical components like EEPROMs, optics, retimers, and management ICs; simplifies the electrical design of switches and adapters, and significantly reduces the cost of the overall system solution.

The following company representatives are available for technical inquiries:

  • Amphenol: Greg McSorley, This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Broadcom: Rob Stone, This email address is being protected from spambots. You need JavaScript enabled to view it.

About RCx

RCx MSA is an industry working group created to define specifications and promote adoption of a new intra-rack connection technology standard.  It was formed in October 2015 by four industry leading companies: Amphenol, Broadcom, Dell and HPE. More information about RCx MSA is available at

Caution Concerning Forward-Looking Statements
This press release may contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements can be recognized by referring to future, not past events. Any forward-looking statements made by RCx MSA or its member companies speak only as of the date they are made. RCx MSA and its member companies are under no obligation to update, disclaim or qualify their forward-looking statements whether as a result of new information, future events, or otherwise.                                                      


Media Contact

Pacific Bridge Marketing
Jennifer Mewett, 714.452.4507
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Are you attending DesignCon? Come and visit Amphenol at booth #641 and let's talk about RCx, the new industry standard for short reach 25Gb connectivity designed for intra-rack 25, 50, and 100Gb Ethernet applications.

DesignCon, the premier conference for chip, board, and systems design engineers, returns to Silicon Valley for its 22nd year. DesignCon serves the high speed communications and semiconductor communities offering state-of-the-art design methodologies, applications, technologies, and unparalleled networking opportunities.

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