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Compact rectangular reservoir with integrated DDC pump top, matte black finish, multiple G1/4 ports on all sides

Alphacool

Alphacool ES Reservoir 1U DDC Version 15377

SKU CH-SY6Z-JS4WW

Compact reservoir with integrated DDC pump top and seven G1/4" ports fits 2.5" bays in 1U server racks

  • Product typeReservoir
  • Designed for 1U server racks with integrated DDC pump top for high performance
  • Compact reservoir provides ample fluid capacity for a full liquid cooling loop
  • Seven G1/4" ports (1 OUT, 6 IN) distributed on all sides for flexible routing
  • Mounts in standard 2.5" drive bays using bottom or side screw holes
  • Includes adhesive Velcro pads for tool-free installation when drive bays are unavailable

Compact 1U reservoir for DDC pumps

The Alphacool ES reservoir is built for liquid-cooling loops inside 1U server racks. It integrates a pump top for a DDC pump, keeping the assembly extremely compact. The design targets administrators and builders who need reliable coolant capacity in a single rack unit.

Seven G1/4 ports and 2.5 drive mounting

The unit provides one OUT and six IN ports distributed across all sides, including two top ports that simplify filling and air removal. Mounting holes on the bottom and sides match standard 2.5 drive bays, and an adhesive Velcro pad is included for locations without screw points.

Single-loop capacity in a 1U footprint

The reservoir volume suits one liquid-cooling loop within a 1U server rack, so multi-loop or high-capacity setups will need additional reservoirs. Builders requiring more coolant reserve or redundant pump configurations should plan for extra space beyond this single unit.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $65.99
Typical for this category: the median of 1,190 items is $71.99.

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Specifications

Product
Product typeReservoir

Questions about this item

What connection standard does the ES Reservoir 1U use and how many ports are provided?

It provides seven G1/4" ports, one OUT and six IN, distributed on all sides for flexible loop routing.

What physical mounting options suit the ES Reservoir 1U DDC Version?

It fits a standard 2.5" drive bay using bottom or side screw holes; a Velcro pad with adhesive on both parts is also included for alternative mounting.

How is the DDC pump integrated and which step is often missed during installation?

The reservoir acts as an integrated pump top for the DDC pump; the step often missed is using the second top IN port as an air-escape vent while filling through the first.

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