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Dell JH994 Optiplex 740 305W Power Supply (Refurbished)
Dell JH994 Optiplex 740 305W Power Supply (Refurbished)
Dell JH994 Optiplex 740 305W Power Supply (Refurbished)
Dell JH994 Optiplex 740 305W Power Supply (Refurbished)
Dell JH994 Optiplex 740 305W Power Supply (Refurbished)
Dell

Dell JH994 Optiplex 740 305W Power Supply (Refurbished)

★★★★★3.9 (2 reviews)
305W

Certified refurbished 305W power supply designed as a direct replacement for Dell OptiPlex 740 and compatible desktop systems.

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Overview

The Dell JH994 is a 305-watt switching power supply built for the Dell OptiPlex 740 and a broad family of compatible OptiPlex tower desktops. It provides a 24-pin ATX motherboard connector, a 4-pin ATX +12V CPU power connector, four SATA power outputs, and a legacy floppy drive connector — covering the standard internal power needs of these business-class systems. The unit is a direct form-factor match, making installation straightforward with no adapter brackets or cable modifications required.

As a Certified Refurbished product, this power supply has undergone functionality testing, cleaning, and inspection before repackaging. It ships with a minimum 90-day warranty, offering a cost-effective path to restoring an OptiPlex desktop to working condition. The extensive list of compatible Dell part numbers — including FY632, C248C, XK215, MH495, HK595, and many more — means this single SKU can service a variety of OptiPlex configurations that share the same power supply form factor and connector layout.

Key Features

This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com

Brand

Dell N 305P-05 Power Supply

Part Number

NPS-305HB A, Dell Part Number: JH994

DC Output

305 Watts

Compatible Part Number

FY632, C248C, XK215, MH495, HK595, NH493, T553C, PH333, HP201, XK215, HK595, C248C, CY827, F305P, JH994, M360M, MK9GY, PH333, PW114, WU133, XK376, PF3TR, P192M, R480P

Specifications

Brand
Dell
Part Number
JH994 / NPS-305HB A
Power Output
305 Watts
24-Pin ATX Motherboard
1x
4-Pin ATX +12V
1x
SATA Power
4x
Floppy Drive (FDD)
1x
Condition
Certified Refurbished
Warranty
Minimum 90 days

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Pros & Cons

👍 Pros

  • Compatible with a wide range of Dell OptiPlex desktop models via extensive cross-referenced part numbers
  • Includes four SATA connectors, supporting multiple internal drives
  • Certified Refurbished status includes functionality testing and a minimum 90-day warranty
  • 305W output provides adequate power for standard OptiPlex configurations

👎 Cons

  • Refurbished unit may show minor cosmetic wear and arrives in generic packaging
  • Limited to 305W, which may not support significant hardware upgrades or high-power add-in cards
  • Lacks modular cabling, so unused connectors remain inside the chassis
  • No PCIe supplemental power connector for dedicated graphics cards

Frequently Asked Questions

This power supply is designed for the Dell OptiPlex 740 and is compatible with several other OptiPlex models that use the same form factor, as indicated by compatible part numbers including FY632, C248C, XK215, MH495, HK595, NH493, and others listed on the unit.
It includes a 24-pin ATX motherboard connector, a 4-pin ATX +12V connector, four SATA power connectors, and one floppy drive (FDD) connector.
It means the unit has been tested for full functionality, inspected, cleaned, and repackaged. It ships with a minimum 90-day warranty and all relevant accessories, though it may arrive in a generic box.
Yes, provided your system uses one of the compatible Dell part numbers listed. It is a direct drop-in replacement delivering the same 305W output as the original unit.

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