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Black acetal reservoir with clear acrylic front cover and integrated D5 pump top, G1/4 threaded ports

Alphacool

Alphacool ES 4U Reservoir D5 Top G1/4 Acetal Black 15392

SKU CH-M0KK-D7WKH

Enterprise 4U rack-mount reservoir with integrated D5 pump top, G1/4 ports and acrylic window for easy fill, drain and level checks

  • TypeReservoir
  • Designed for 4U server front mounting
  • Integrated D5 pump top saves installation space
  • Three G1/4 inlets and one outlet for flexible plumbing
  • Acrylic front cover enables visual coolant level checks
  • Front cover ports simplify filling, draining and venting

Enterprise 4U reservoir with integrated D5 pump top

The Alphacool ES 4U reservoir is built for the Enterprise Solutions series and mounts directly in the front of a 4U server rack. It combines a reservoir and pump top into a single unit compatible with all original D5 pumps and Alphacool VPP pumps. An acrylic cover provides visual monitoring of coolant level and flow. The assembly includes the pump retaining ring, O-ring and mounting screws.

Front-mount design with G1/4 connections

Three inlets and one outlet all use G1/4" threading for standard water-cooling fittings. Two inlets sit on the front acrylic cover for straightforward filling, draining and venting without removing panels. The remaining inlet and the outlet are positioned at the rear for integration into the main loop. This layout keeps tubing runs short inside a 4U chassis.

Single-pump capacity with front-access maintenance

The unit supports one D5-class pump, delivering flow rates suitable for typical enterprise CPU or GPU blocks in a 4U enclosure. It does not accommodate dual-pump redundancy or larger reservoir volumes for extended loop capacity. Builders needing multiple pumps or higher coolant reserves will require a different reservoir configuration.

Points forts

  • Designed for 4U server front mounting
  • Integrated D5 pump top saves installation space
  • Three G1/4 inlets and one outlet for flexible plumbing
  • Acrylic front cover enables visual coolant level checks
  • Front cover ports simplify filling, draining and venting

Caractéristiques

TypeReservoir

Questions sur cet article

How many G1/4 ports are available for loop connections on the ES 4U reservoir?

The reservoir provides three inlets and one outlet, all using G1/4 threads. Two inlets sit on the front acrylic cover for filling and draining, while the remaining inlet and the outlet are located on the rear for loop integration.

How much heat does the integrated D5 pump add to the coolant during continuous operation?

The reservoir itself is a passive acrylic and acetal component; any heat contribution comes from the D5 pump you install, which varies by pump speed setting and is not defined by the reservoir.

Which specific pump models fit the integrated top without modification?

The top accepts all original D5 pumps and all Alphacool VPP pumps. The package includes the pump retaining ring, a pump O-ring and all mounting screws needed for installation.

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