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Rectangular silver metal server PSU with side fan grille and rear cable bundle

ENHANCE

ENHANCE ENP-7140B Flex 400W ATX Server Power Supply

SKU CH-KMWV-64FB8

400 W Flex ATX server supply with 20/24-pin, four-pin, Molex and SATA connectors, fitting CK102D, CK120, CK122, GHI-106 and GHI-108 cases at over 87 % efficiency

  • Product typeProprietary Power Supply
  • 400 W output powers demanding server builds
  • 87 % efficiency reduces energy waste and heat
  • Flex form factor fits CK102D, CK120, CK122, GHI-106 and GHI-108 cases
  • 20/24-pin, 4-pin, Molex and SATA connectors cover diverse drive and board needs
  • Compact 3.3" x 1.55" x 5.9" dimensions save space in dense chassis

Power Output and Form Factor

The Enhance ENP-7140B is a proprietary 400W Flex ATX power supply designed for compact server chassis. It delivers power through a 20/24-pin main connector, two 4-pin connectors, two Molex connectors and four SATA connectors. Efficiency is rated above 87 percent and the unit measures 3.3 by 1.55 by 5.9 inches.

Case Compatibility and Limits

This supply fits chassis such as the KRI CK102D, CK120, CK122, GHI-106 and GHI-108 among others. Builders using cases outside that list or requiring higher wattage, modular cabling or standard ATX dimensions should consider alternative units. The proprietary design also limits direct replacement options in many standard enclosures.

Sustained Load Behaviour

Under continuous demand the unit maintains its rated output within the stated efficiency band. The compact internal layout relies on forced airflow from the host chassis, so thermal performance scales with case ventilation. Prolonged operation at maximum load in restricted airflow environments will raise internal temperatures faster than in open configurations.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $138.99
Typical for this category: the median of 3,798 items is $131.99.

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Specifications

Product
Product typeProprietary Power Supply

Questions about this item

Does this ENP-7140B unit require a standard 20/24-pin ATX motherboard connector to power the system?

Yes, the supply includes a 20/24-pin ATX connector plus two 4-pin CPU connectors, four Molex and four SATA leads for drives and peripherals.

Will the 3.3 inch width and 1.55 inch height fit inside a CK120 or GHI-108 chassis I already own?

The 3.3" x 1.55" x 5.9" form factor matches the CK102D, CK120, CK122, GHI-106 and GHI-108 cases listed by the manufacturer.

How can I confirm the ENP-7140B is delivering its rated 400 W at greater than 87 % efficiency after installation?

Monitor system stability under load and check that the power-good signal holds; sustained operation without shutdowns indicates the unit is meeting its 400 W rating and efficiency target.

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