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Flex Resources Flex Secure Control Module

Flex Secure Control Module

Posted on
October 6, 2025
Solution Brief Cloud Data Center IT Infrastructure

Protect data centers from the ground up with the Flex Data Center Secure Control Module

Flex Secure Control Module SCM202A

As data centers evolve to meet the growing demands of cloud computing and AI, the need for robust security has never been more critical. The Flex Data Center Secure Control Module (DC-SCM) answers the challenge, providing a powerful, integrated solution to protect your data center infrastructure from the ground up.

The Flex DC-SCM, designed to secure your data center hardware, is a next-generation security module based on Open Compute Platform (OCP) DC-SCM specifications. It goes beyond traditional security measures by integrating directly with your servers and network infrastructure. Think of it as a central control system in a chassis for security, giving you a single point of control for managing and monitoring the integrity of your hardware and software.

Flex offers three OCP-compliant models with two Horizontal Form Factor (HFF) DC-SCMs and one Compact Form Factor (CFF) DC-SCM.

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Key features and benefits

The DC-SCM is packed with features that make it an essential tool for any modern data center. It provides common server management, security, and control functions in a common form factor module. The DC-SCMs support OCP Data Center Modular Hardware System (DC-MHS) Host Processor Module (HPM) implementations or any server platforms with a matching Data Center-Ready Secure Control Interface (DC-SCI).

Model variants

Flex Secure Control Module SCM202A

SCM202A
This model is based on the OCP DC-SCM 2.0 specification.

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Flex SCM202B

SCM202B
This model is compliant with the OCP DC-SCM 2.1 specification supporting Type 1 pin-out.

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DC-SCM Model SCM203A

SCM203A
CFF DC-SCM compliant with OCP DC-SCM 2.2 specification supporting DC-SCI Type 1 pin-out.

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SCM202A and SCM202B use the Aspeed AST2600 BMC SoC, AST1060 RoT module, and Infineon SLB 9672 TPM 2.0 module. They also feature redundant flash memory modules for BIOS and BMC for the accompanying OpenBMC management software.

The SCM203A is powered by an Aspeed AST2700 BMC with built-in LTPI, which eliminates the need for an additional CPLD for LTPI implementation. It supports 2GB of DDR5 memory, with options for up to 8GB, and includes dual 256MB BMC flash, dual 64MB BIOS flash, and a 3rd pair of 64MB flashes for additional firmware or configuration for a device such as an accelerator or GPU. A Microchip TS1800 Root of Trust (RoT) controller and an Infineon SLB9672 TPM 2.0 module provide enhanced platform security.

Typical use cases include managing server, storage, networking, and other applicable IT equipment that support a DC-SCI connector interface between a Host Processor Module (HPM) and the Flex DC-SCM. The DC-SCM connectivity interface is also platform agnostic, supporting both x86 and ARM architectures.

Advanced Platform Root of Trust (RoT)

For the Platform Root of Trust (RoT) module, SCM202A and SCM202B use an Aspeed AST1060 security processor, and SCM203A uses a Microchip TS1800. When configured with the platform RoT, the DC-SCMs offer Commercial National Security Algorithm (CNSA) Suite 2.0 and Post Quantum Computing support with PQC algorithms XMSS and LMS (ML-DSA, LMS and ML-KEM on SCM203A). This future-proof design also supports Intel Platform Firmware Resiliency (PFR) 4.0 and future Intel and AMD platform security designs.

Flex SCM202B with DC-SCM Adapter Board

Accelerating development with the DC-SCM Adapter Board (DAB)

The DC-SCM is also available with an optional DC-SCM Adapter Board (DAB), which enables BMC standalone operation. The DAB can be used to evaluate the DC-SCM software stack and test the hardware components on the board.

Customization and flexibility

Flex can customize and manufacture the DC-SCM reference designs to suit your requirements. The existing design is a superset supporting a comprehensive feature set while being compliant with the OCP specification, but the design can be customized to add or remove components as needed.

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