Expanded Liquid Cooling Connectors for Thermal Management

A broader liquid cooling connector portfolio for AI data centers, ESS, and EV charging

This expansion strengthens Amphenol Industrial Operations’ Liquid Cooling Systems portfolio by giving customers more options for thermal management architecture across a broader range of applications. The family now supports compact computer tray environments, OCP-aligned quick disconnect interfaces, and higher-flow system-level liquid cooling connections used between coolant distribution units and manifolds. Together, these solutions help support reliable cooling performance, flexible integration, and easier maintenance in demanding operating environments.

Expanded Liquid Cooling Connectors for Demanding Thermal Management

As thermal demands continue to rise across advanced computing and power systems, liquid cooling connectors play a more critical role in maintaining performance and reliability. The latest expansion of the Liquid Cooling Systems family gives engineers and designers a broader set of options for compact, blind-mate, and high-flow applications, helping support efficient thermal management in evolving system architectures.

MQD Supports Compact Liquid Cooling Connector Applications

One of the key additions is the MQD series, a compact quick disconnect solution designed for smaller-diameter liquid cooling applications. MQD features a push-pull locking mechanism and is available in sizes 02, 03, and 04, with both straight and right-angle (90 degree) versions available for installation flexibility. This compact design makes MQD especially well suited for computer tray and space-constrained cooling applications where reliable performance and ease of use are both essential. The series also offers low flow resistance, corrosion-resistant materials, QR code traceability, and multiple termination possibilities for system designers seeking flexible integration.

UQD/UQDB Rev 2.0 Advances OCP-Aligned Liquid Cooling Connectors

The UQD/UQDB Rev 2.0 series brings Amphenol Industrial Operations’ liquid cooling connectors into alignment with updated Open Compute Project requirements for high-performance liquid cooling systems. The UQD connector supports quick plug-in functionality, while the UQDB connector adds blind-mate capability with self-alignment features that simplify installation. Rev 2.0 enhancements include more fully defined geometry, standardized testing expectations, and improved flow performance. The updated configuration also supports hybrid mating, allowing a UQD plug to mate with a UQDB socket, giving engineers more flexibility when designing liquid cooling architectures for advanced computing systems.

SHQD Extends the Family into High-Flow Sourceline Service

For higher-flow system applications, the SHQD series extends the family into sourceline connectivity. SHQD is designed for full-flow liquid cooling applications and incorporates dual interlock safety features intended to help prevent spills and support safer operation during maintenance or service. Available in 1-inch, 1.5-inch, and 2-inch sizes, SHQD supports rated flow performance up to 800 L/min and offers multiple termination options including thread, hose barb, and sanitary flange configurations. This makes it well suited for connections between a CDU and manifold where high flow, low resistance, and dependable dry-break performance are critical to system operation.

Liquid Cooling Connector Performance Across the Expanded Family

Across the expanded family, Amphenol Industrial Operations emphasizes several performance characteristics that are increasingly important in liquid-cooled systems. These include dry-break sealing, low flow resistance, corrosion-resistant stainless steel construction, QR code traceability, and seal materials designed for compatibility with common coolants such as deionized water, ethylene glycol, and propylene glycol. Depending on the series, users can select solutions optimized for compact system layouts, blind-mate installation, or high-flow source line service, making the portfolio more complete for designers building next-generation thermal management systems.

A Broader Liquid Cooling Connector Portfolio for Evolving Systems

With MQD, UQD/UQDB Rev 2.0, and SHQD now part of the offering, the Liquid Cooling Systems family gives customers a wider range of liquid cooling connectors for evolving thermal management requirements. Whether the need is compact connectivity inside dense equipment, OCP-aligned quick disconnect performance, or higher-flow sourceline capability, the expanded portfolio is designed to help support reliable liquid cooling across AI data centers, ESS, EV charging systems, and other demanding applications.

To learn more about the expanded family of liquid cooling connectors or discuss the right solution for your application, visit our Liquid Cooling Systems page or contact Sales Support.