On January 27th IBM announced the next generation physical appliance, the DataPower Gateway X4, a high-performance drop-in enterprise application gateway designed to secure, integrate, and automate modern and hybrid workloads—with built-in quantum-safe cryptography to protect long-lived data against future threats.
Building on the proven lineage of IBM security gateways, the X4 appliance extends IBM DataPower® capabilities with significant improvements in performance, security, and usability. It provides a single, powerful gateway to protect, control, optimize, and connect applications across on-premises, cloud, and hybrid environments.

Why application security matters for business agility Enterprise
IT environments continue to grow in complexity, spanning multiple clouds, data centers, and architectural styles. At the same time, cyber threats are expanding in scale and sophistication—including emerging risks to today’s encryption methods from future quantum computing advances. To innovate quickly and safely, organizations must securely expose mission-critical services while maintaining visibility, governance, and control. Secure, scalable integration is essential not only for
delivering new digital experiences, but also for enabling automation that improves operational efficiency. Without a modern approach to application security, organizations risk slowing innovation, increasing operational costs, and exposing critical assets to an intensifying threat landscape.

Enterprise-grade security with quantum-safe protection
Protecting client assets is a core focus at IBM. DataPower Gateway X4 appliances deliver robust application security and integration services with the ease of use and a low total cost of ownership that are hallmarks of DataPower physical appliances. The gateway supports a unified security framework for on-premises, cloud, and hybrid environments. Deployed at the network edge and in the DMZ, it helps block unauthorized access, mitigate denial-of-service attacks, and optimize traffic routing. When combined with DataPower Virtual Edition, organizations can extend the same level of protection to cloud deployments—ensuring consistent application security across all environments.

The gateway secures traditional web services to modern workloads, including API-based applications, event-driven and streaming services using Kafka™, gRPC and GraphQL™ services.

IBM is a recognized leader in both quantum computing and IT security. IBM researchers developed cryptographic schemes that have been adopted by NIST as standards for strengthening public-key cryptography. DataPower Gateway X4 appliance includes post-quantum cryptography (PQC) capabilities that can be configured for both inbound and outbound connections using TLS server and client profiles. Hybrid cryptographic algorithms are also provided, combining quantum-safe and
classical methods to balance security strength with performance. With IBM DataPower, organizations can confidently protect, govern, and optimize service delivery while reducing development effort and mitigating business risk.

Key Capabilities of DataPower Gateway X4 Appliance
DataPower Gateway X4 is designed for enterprise architects, security teams, and platform engineers,
delivering:

• Rapidly deployable, plug-and-play physical appliance
• Improved performance and scalability:
  • Increased processing capacity, memory, and network bandwidth compared to previous
    generations (DataPower X2 and X3 gateway appliances)
• Secure storage for cryptographic keys:
  • Hardware Security Module (HSM) ensures the cryptographic keys never leave the secure
    hardware. Accelerates cryptographic functions and simplifies management by
    centralizing key security in a single hardened unit.
• Enterprise-grade secure design:
  • Hardened, tamper-resistant design, supporting advanced cryptographic operations and
    quantum-safe protection
• Reliable, seamless, high-speed integration into any network:
  • Front panel networking options with built-in Ethernet modules supporting 1 Gb, 10 Gb,
    40 Gb, and 100 Gb
• High-performance storage:
  • Equipped with 1.6 TB NVMe disk drives for enhanced speed and efficiency
• Improved usability:
  • Optimized web management interface designed to enhance developer productivity
    

Availability and Next Steps
DataPower Gateway X4 appliance will be Generally Available on March 26, 2026. DataPower v11.0 will also be Generally Available on that date for deployment under the DataPower Virtual Edition entitlement. Read the full announcement.

Learn how the IBM DataPower Gateway can strengthen your application security and automation strategy.

Statements regarding IBM’s future direction and intent are subject to change or withdrawal without notice and represent goals and objectives only