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White rectangular ATX power supply unit, 9.4 by 2.4 by 2.8 inches

Thinkstar

Thinkstar H255Es-00 255W power supply

SKU CH-RZ16-73B9V MPN H255Es-00

255 W ATX power supply for Dell OptiPlex 3020, 7020, 9020 and Precision T1700 small-form-factor systems

  • TypeATX
  • 255W output supports OptiPlex 3020 7020 9020 and Precision T1700 SFF
  • White ATX unit fits Dell SFF chassis measuring 9.4 x 2.4 x 2.8
  • Replaces Dell part numbers Yh9D7 R7Ppw Nt1Xp 3Xrj0 and others
  • New condition ensures reliable replacement for failed original supply
  • Ships as single 255W power supply ready for installation

Compatible Dell SFF systems

This 255W replacement power supply fits Dell Optiplex 3020, 7020 and 9020 small form factor desktops plus the Precision T1700 SFF. It matches part numbers Yh9D7, R7Ppw, Nt1Xp, 3Xrj0 and several other OEM codes. The unit ships new in a white finish and measures 9.4 by 2.4 by 2.8 units.

255W capacity and headroom

The 255W rating supports the original components installed in the listed Optiplex and Precision SFF chassis. It handles the factory CPU, memory, integrated graphics and typical office peripherals without strain. Adding a discrete graphics card or multiple high-power drives would exceed the available headroom.

ATX power standard limits

The supply follows the ATX form factor used in these Dell SFF systems. Its fixed cable set and physical dimensions limit upgrades to components that fit the original power budget and connector layout. Builds requiring higher wattage or additional PCIe power connectors cannot use this unit.

Pontos fortes

  • 255W output supports OptiPlex 3020 7020 9020 and Precision T1700 SFF
  • White ATX unit fits Dell SFF chassis measuring 9.4 x 2.4 x 2.8
  • Replaces Dell part numbers Yh9D7 R7Ppw Nt1Xp 3Xrj0 and others
  • New condition ensures reliable replacement for failed original supply
  • Ships as single 255W power supply ready for installation

Especificações

TypeATX

Perguntas sobre este artigo

Will the 255W unit fit the existing mounting points in my OptiPlex 3020 SFF?

The supply is built to the Dell SFF form factor used in the OptiPlex 3020, 7020, 9020 and Precision T1700, so it aligns with the original screw holes and chassis guides.

How can I verify the PSU is delivering power after I install it?

When the power button is pressed the system fan should spin, the front power LED lights solid white and the POST screen appears — those are the normal signs the 255W unit is operating.

What comes in the box besides the power supply itself?

The package contains one 255W power supply; no extra cables, mounting screws or adapters are included.

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