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Refurbished black metal PSU with 24-pin and SATA cables

DELL

DELL HK595 305 W power supply for OptiPlex 330 740 745 755

SKU CH-VSBE-XABE7 MPN HK595

305 W replacement unit with 24-pin main and one SATA connector fits OptiPlex 330, 740, 745 and 755 models

  • TypeOthers
  • Maximum Power305 W
  • Main Connector24Pin
  • SATA Power Connector1
  • Connectors1 x 24Pin Main Connector 1 x SATA connector
  • FeaturesFor OptiPlex 330 OptiPlex 740 MLK OptiPlex 740e OptiPlex 745
  • Reliable power delivery with 305 W maximum output
  • Direct compatibility with OptiPlex 330 740 745 755 systems
  • Standard 24 pin main connector ensures secure motherboard connection
  • Single SATA power connector supports one storage drive
  • Refurbished unit tested for dependable operation

305 W PSU for legacy OptiPlex

This refurbished DELL HK595 power supply delivers 305 W for OptiPlex 330, 740, 745 and 755 desktops. It provides a single 24-pin main connector and one SATA power lead. The unit suits owners replacing a failed original supply in these specific models.

Steady 305 W output under load

The supply is rated to sustain its full 305 W continuously rather than only in short bursts. Voltage regulation remains within ATX limits during extended operation typical of office workloads. Thermal design matches the original chassis airflow path for reliable long-term service.

24-pin and SATA limits

The single 24-pin connector fits the proprietary motherboard header used by these OptiPlex systems. One SATA connector restricts the build to a single SATA drive or requires an adapter for additional devices. No PCIe or legacy Molex leads are present on this unit.

Highlights

  • Reliable power delivery with 305 W maximum output
  • Direct compatibility with OptiPlex 330 740 745 755 systems
  • Standard 24 pin main connector ensures secure motherboard connection
  • Single SATA power connector supports one storage drive
  • Refurbished unit tested for dependable operation

Specifications

BrandDELL
ModelHK595
TypeOthers
Maximum Power305 W
Main Connector24Pin
SATA Power Connector1
Connectors1 x 24Pin Main Connector
1 x SATA connector
FeaturesFor
OptiPlex 330
OptiPlex 740 MLK
OptiPlex 740e
OptiPlex 745e
OptiPlex 755
Shipping weight1.81 kg
Package size432 × 305 × 102 mm

Questions about this item

How much heat and noise does the 305 W HK595 produce when running continuously in an OptiPlex 755?

The 305 W HK595 is rated for 305 W maximum output; actual heat and fan noise depend on the load drawn by the OptiPlex 755 components and the case airflow.

Which cables or adapters must I already have to connect the HK595 to a SATA drive and the motherboard?

The unit provides one 24-pin main connector and one SATA power connector; any additional SATA devices or peripheral power cables must be supplied separately.

Will the HK595 fit and power an older OptiPlex 330 without modification?

The HK595 is listed for the OptiPlex 330, 740 MLK, 740e, 745e and 755, so it matches the 330's 24-pin main and single SATA power requirements.

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