New Compute Express Link (CXL) Support Standards Released by JEDEC


June 25, 2024 by our News Team

JEDEC has released new standards for memory modules that support the high-speed interface CXL, providing comprehensive guidelines for their construction and labeling, and these standards can be downloaded for free from the JEDEC website.

  • Provides compatibility with the latest technology
  • Developed in collaboration with a reputable organization
  • Free accessibility for all users


Tech enthusiasts, get ready to geek out because JEDEC Solid State Technology Association has some exciting news for you. Today, they announced the publication of JESD405-1B JEDEC Memory Module Label – for Compute Express Link (CXL) V1.1. Now, I know that might sound like a bunch of jargon, but bear with me because this is actually pretty cool stuff.

Let’s break it down. JESD405-1B is joining forces with JESD317A, which was introduced back in March 2023, to define the function and configuration of memory modules that support CXL specifications. In simpler terms, these standards are all about making sure that memory modules are compatible with the latest and greatest technology out there.

But what exactly is CXL? Well, it stands for Compute Express Link, and it’s a fancy term for a high-speed interface that connects processors and memory in data centers and servers. It’s like the superhighway that allows data to flow seamlessly between these components, making everything run faster and more efficiently.

Now, back to JESD405-1B and JESD317A. These standards were developed in collaboration with the Compute Express Link standards organization, so you know they’re legit. And guess what? You can download them for free from the JEDEC website. Talk about accessibility!

So, what do these standards actually do? JESD317A provides all the nitty-gritty details for CXL memory modules, like how they should be built and how they should behave. It covers everything from the physical aspects, like size and shape, to the electrical requirements and even the environmental guidelines. In other words, it’s like a comprehensive user manual for memory modules.

On the other hand, JESD405-1B focuses on the labels for these memory modules. You know, those little stickers that tell you what’s inside the module and what it’s capable of. These labels are crucial because they help end users, like you and me, choose the right memory solutions for our needs.

So, what kind of information do these labels include? Well, they’ll tell you the memory media type, such as DDR5, which is the latest and greatest in memory technology. They’ll also let you know the capacity of the module in either gigabytes or terabytes. And if that’s not enough, they even provide details about the connector and I/O configurations. So, whether you need a module with a x4 connector or a x16 connector, these labels have got you covered.

But wait, there’s more! In this new release version 1.1, they’ve even added a feature that tells you the country of origin of the module assembly. How cool is that? It’s all about simplifying inventory management and making sure you have all the information you need at your fingertips.

Mian Quddus, the Chairman of JEDEC Board of Directors, couldn’t contain his excitement about these standards. He said, “Both JESD317A and JESD405-1B affirm JEDEC’s active support for expanding the market for CXL solutions. These documents represent the cooperation of dozens of companies representing suppliers and end users of CXL memory solutions.” In other words, these standards are a big deal and they’re here to stay.

If you’re itching to get your hands on these standards, you’re in luck. You can access them for free from the JEDEC website. So go ahead, dive into the world of CXL and unleash the full potential of your memory modules. Happy exploring!

New Compute Express Link (CXL) Support Standards Released by JEDEC

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Background Information


About JEDEC:

JEDEC is the global leader in the development of standards for the microelectronics industry. It was founded in 1958 as the Joint Electron Device Engineering Council to develop standards for the microelectronics industry. The organization's headquarters is located in Arlington, Virginia, United States. JEDEC sets standards for a wide range of technologies, including semiconductors, memory devices, integrated circuits, and more. Its standards are widely adopted and utilized throughout the industry to ensure compatibility and interoperability among various electronic devices and components.

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Technology Explained


DDR5: DDR5 (Double Data Rate 5) is the next generation of memory technology for the computer industry. It is a modern day improvement on earlier DDR technologies, with faster speeds, greater bandwidth and higher capacities. DDR5 enables higher resolution, seamless gaming experiences and faster data transfer rates, making it an ideal choice for high-performance computing and 4K gaming. With its greater RAM compatibility, DDR5 provides faster buffering times and raised clock speeds, giving users an improved overall work system. DDR5 is also optimized for multi-tasking, allowing users to multitask without experiencing a significant drop in performance, increasing the productivity of digital tasks. As an ever-evolving technology, DDR5 is paving the way for the computer industry into a new and powerful era.

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