Compute Express Link (CXL) is an open industry interconnect
standard for providing high bandwidth and low latency. It adds
connectivity between host processors, accelerators, memory devices,
and network interface cards (NICs). CXL also enables memory
expansion and acceleration across high-performance computational
workloads for AI, ML, HPC, and communications segments. CXL
uses PCIe Gen 5.0 PHY based high-speed serial link to communicate
between the latest generation of CPU processors.
SMART develops CXL Type 3 (CXL.mem) memory products to
address the industry’s need for more memory per processor core.
The CXL interconnect specification allows for a significant expansion
of memory form factor options leveraged from SSDs. SMART’s
introductory CXL Memory Modules known as XMM’s are offered in
the E3.S form factor.
Memory Modules (XMM)
Key Features
•
Available in EDSFF E3.S 2T (2U short) form-factor
•
CXL-2.0 compatible with PCIe-Gen5 speeds running at 32GT/s
•
64GB density with 96GB
•
Supports Reliability, Availability and Serviceability (RAS) features added
in CXL-2.0
•
Powered by only 12V supply from EDSFF compatible edge interface
(SFF-TA-1009)
•
Supports sideband interfaces for real-time debug, management and
system update, enabling out-of-band management of the module
•
Supports additional security features to protect data from side-
channel attacks
•
Performance 64GB/s with 66% reads to DDR5 over CXL x16
•
ASIC based
Applications
•
For serial-attached memory expansion
needed in data-intensive computing applica-
tions
•
Adds tiered cache for memory
For more information, please visit: www.smartm.com
Customer Service:
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©2023, SMART Modular Technologies, All rights reserved. The stylized “S” in conjunction with “SMART”, as well as “SMART Modular Technologies” are registered trademarks of SMART Modular Technologies. All other trademarks are
the property of the respective owners. These materials are provided by SMART Modular Technologies as a service to its customers and may only be used for informational purposes. 02.03.23/CXL/Rev.6
Ordering Information
CXL Memory Module (XMM)
SMART Part Number Description
STXAB64GRMBF4S40SB 64GB CXL-2.0 Memory modules in E3.S 2T form-factor with dual ranks/channel DDR5
STXAB96GRMBF4S40SB 96GB CXL-2.0 Memory modules in E3.S 2T form-factor with dual ranks/channel DDR5
Contact: Arthur Sainio at Arthur.Sainio@smartm.com for any sales and sampling queries.