CXL™ Consortium Releases Compute Express Link ™ 2.0 Specification
The CXL™ Consortium, an industry standards body dedicated to advancing Compute Express Link™ (CXL) technology, today announced the release of the CXL 2.0 specification. CXL is an open industry-standard interconnect offering coherency and memory semantics using high-bandwidth, low-latency connectivity between host processor and devices such as accelerators, memory buffers, and smart I/O devices. The CXL 2.0 specification adds support for switching for fan-out to connect to more devices; memory pooling for increased memory utilization efficiency and providing memory capacity on demand; and support for persistent memory – all while preserving industry investments by supporting full backwards compatibility with CXL 1.1 and 1.0.
“Datacenter architectures continue to evolve rapidly to support the growing demands of emerging workloads for Artificial Intelligence and Machine Learning, with CXL technology keeping pace to meet the performance and latency demands,” said Barry McAuliffe, president, CXL Consortium. “Designed with breakthrough performance and easy adoption as guiding principles, the CXL 2.0 specification is a significant achievement from our dedicated technical work group members.”
Key Highlights of the CXL 2.0 Specification:
- Adds support for switching to enable device fan-out, memory scaling, expansion and the migration of resources.
- Includes memory pooling support to maximize memory utilization, limiting or eliminating the need to overprovision memory.
- Introduces standardized fabric manager specification for inventory and resource allocation to enable easier adoption and management of CXL-based switch and fabric solutions.
- Provides standardized management of the persistent memory interface and enables simultaneous operation alongside DDR, freeing up DDR for other uses.
- Introduces managed hot-plug support to take a CXL device online or offline from the system.
- Adds link-level Integrity and Data Encryption (CXL IDE) to provide confidentiality, integrity and replay protection for data transiting the CXL link.
- Supports a wide variety of industry interconnect form factors and standardized management interfaces to ease implementation.
- Includes Compliance and Interoperability specifications and in-system testing to enable a robust and interoperable multi-vendor ecosystem.
“The CXL Consortium has moved with breathtaking speed to deliver its second generation CXL 2.0 spec, even before products incorporating the first generation CXL 1.0 and 1.1 specs have reached the market,” observed Nathan Brookwood, Research Fellow at Insight 64. “The new 2.0 features, including switching, memory pooling and persistent memory support pave the way for fully disaggregated systems in which pools of accelerators, DRAM and persistent memory storage can be dynamically connected to any one of 16 host servers to meet application demands. These features will enable system designers to invent entirely new types of systems that architects could only dream about just a few years ago.”
The CXL 2.0 specification is available for public download at https://www.computeexpresslink.org/download-the-specification.
Additional Resources:
- White Paper: Introducing the CXL 2.0 Specification
- CXL Consortium Member Company Statements of Support
About the CXL™ Consortium
The CXL Consortium is an industry standards body dedicated to advancing Compute Express Link™ (CXL) technology. CXL is a high-speed interconnect offering coherency and memory semantics using high-bandwidth, low-latency connectivity between the host processor and devices such as accelerators, memory buffers, and smart I/O devices. For more information or to join, visit www.computeexpresslink.org.
Compute Express Link and CXL are trademarks of the CXL Consortium. All other trademarks are the property of their respective owners.
To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.
View source version on businesswire.com: https://www.businesswire.com/news/home/20201110005037/en/
Contact information
Elza Wong
Nereus for CXL Consortium
press@computeexpresslink.org
About Business Wire
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
GeologicAI Announces Acquisition of Lumo Analytics to Complete Its Integrated Sensor Suite Across Critical Minerals and Rare Earth Elements17.12.2025 17:53:00 CET | Press Release
GeologicAI, the global leader in High-Resolution Decision Engineering for the critical minerals sector, today announced its acquisition of Lumo Analytics, a provider of the most compact and efficient Laser-Induced Breakdown Spectroscopy (LIBS) scanner in the market. LIBS is a rapid, non-destructive technique that uses a high-energy laser pulse to vaporize a tiny spot on a rock, creating a short-lived plasma which emits light unique to the elements present when it cools. This spectral “fingerprint” provides immediate chemical information about the material. For the mining sector, this means faster geochemical insights directly at the source, enabling more efficient exploration and resource evaluation. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251217715846/en/ The transaction firmly cements GeologicAI’s position as the only truly comprehensive and integrated source of sensor data for the critical minerals industry. Buildi
Incyte Announces European Commission Approval of Minjuvi ® (tafasitamab) for the Treatment of Relapsed or Refractory Follicular Lymphoma17.12.2025 17:20:00 CET | Press Release
Incyte (Nasdaq:INCY) today announced that the European Commission (EC) has approved Minjuvi® (tafasitamab) in combination with lenalidomide and rituximab for the treatment of adult patients with relapsed or refractory follicular lymphoma (FL) (Grade 1-3a) after at least one line of systemic therapy. "The EC approval of Minjuvi addresses a critical need, bringing a new, first-of-its-kind, chemotherapy-free option to patients in Europe with relapsed or refractory FL,” said Bill Meury, President and Chief Executive Officer, Incyte. “Historically, FL patients have had limited treatment options in the second-line setting, and we are proud to drive this important advancement for the lymphoma community as we seek to deliver innovative medicines for patients with cancer.” The EC decision follows the positive opinion received from the European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) in November 2025. This marks the second indication for Minjuvi, which was previo
Rigaku Launches ONYX 3200, a Metrology Instrument for Semiconductor Manufacturing17.12.2025 16:00:00 CET | Press Release
Rigaku Corporation, a global solution partner in X-ray analytical systems and a group company of Rigaku Holdings Corporation (headquarters: Akishima, Tokyo; CEO: Jun Kawakami; hereinafter “Rigaku”) announced the launch of the ONYX 3200, a new semiconductor metrology system to measure film thickness, composition and bump* structures for wafer-level processes. The system is engineered to help manufacturers stabilize quality and increase yield in the metal-wiring formation (back-end-of-line (BEOL)) and packaging processes of semiconductor chips. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251216597402/en/ ONYX 3200 Due to accelerating demands for AI, high-performance computing, data centers, mobile devices, and other devices, chip wiring and interconnect structures have grown increasingly delicate and complex. As a result, the ability to accurately and non-destructively measure metal layers thinner than a human hair and bump
Taylor Wessing Diversifies Its International Strategy17.12.2025 15:05:00 CET | Press Release
International law firm Taylor Wessing is set to diversify its strategy within its international alliance, in order to push international growth and innovation. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251217415857/en/ Dr. Oliver Bertram, Global Co-Chair at Taylor Wessing The English part of the partnership is seeking a merger with US law firm Winston & Strawn and would – depending on a corresponding partner decision, which is still pending – leave the Taylor Wessing alliance at the end of April 2026. Both parties wish to continue their successful joint international client work unchanged. Therefore, collaboration between Taylor Wessing and future Anglo-American firm Winston Taylor will continue seamlessly based on a cooperation agreement, ensuring that clients will not experience any change in their collaboration with Taylor Wessing. With the firm’s new open strategy, Taylor Wessing equally meets the strategic requirem
ISACA to Lead Global Credentialing for CMMC Cybersecurity Framework as International Cyber Readiness Standards Rise17.12.2025 15:00:00 CET | Press Release
As cyber threats escalate and governments raise expectations around operational resilience, ISACA has been appointed to lead the global credentialing programme for the U.S. DoW’s Cybersecurity Maturity Model Certification (CMMC) program. The appointment positions ISACA – the international association for cybersecurity, audit and digital trust – as the exclusive CMMC Assessor and Instructor Certification Organization (CAICO), responsible for training, examining and certifying professionals, assessors, and instructors across the CMMC ecosystem. Originally developed by the U.S. DoW to protect sensitive unclassified information within its global supply chain, CMMC is increasingly relevant to European defence, aerospace, engineering and high-technology companies participating in transatlantic programmes. As the framework is phased into U.S. procurement from 2025 to 2028, many European organisations that handle Controlled Unclassified Information (CUI) or Federal Contract Information (FCI),
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom