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Rectangular black ATX power supply unit with cooling fan and multiple cable connectors

SMUGDESK

SMUGDESK 300W ATX power adapter for HP ProDesk 400 405 480 550 G2 MT

SKU CH-8KZC-DYNJH

300 W ATX power supply replaces HP ProDesk 400, 405, 480 and 550 G2 micro-tower units with direct plug-and-play compatibility and full SATA, Molex and 24-pin mainboard connectors

  • Direct plug-and-play swap for HP ProDesk 400 405 480 550 G2 MT
  • Stable continuous 300W output with universal 100-240V AC input
  • Standard ATX layout with 24Pin mainboard CPU SATA and Molex connectors
  • Multi-layer OVP OCP SCP OTP protection and silent cooling fan
  • Same dimensions as original factory PSU with full-load aging test completed

OEM replacement for HP ProDesk G2 MT

This 300W ATX power adapter is built as a direct replacement for HP ProDesk 400, 405, 480 and 550 G2 micro tower desktops. It cross-references OEM part numbers 759045-001, 759763-001 and DPS-300AB-73B for plug-and-play installation. The unit matches the original physical dimensions and connector layout, making it suitable for IT maintenance spare inventory or faulty power supply swap-out.

Continuous 300W output under sustained load

The supply delivers a stable continuous 300W rated output rather than a short-term peak figure. Universal 100-240V AC wide input ensures consistent operation across different mains voltages. High efficiency design lowers idle power consumption during long-hour office operation. Standard ATX wiring provides a full set of 24Pin mainboard, CPU, SATA and Molex peripheral connectors to support HDD, SSD and optical drive installation.

Silent cooling fan with multi-layer protection

A built-in silent cooling fan stabilises inner temperature and reduces running noise during normal use. Multi-layer safety protection includes OVP, OCP, SCP and OTP against overvoltage, overcurrent, short circuit and overheat conditions. Full-load ageing testing is finished before outgoing shipment to verify thermal performance and reliability under continuous demand.

Highlights

  • Direct plug-and-play swap for HP ProDesk 400 405 480 550 G2 MT
  • Stable continuous 300W output with universal 100-240V AC input
  • Standard ATX layout with 24Pin mainboard CPU SATA and Molex connectors
  • Multi-layer OVP OCP SCP OTP protection and silent cooling fan
  • Same dimensions as original factory PSU with full-load aging test completed

Specifications

No published specifications for this item yet.

Questions about this item

How loud and hot does the 300W ATX unit get when the HP ProDesk runs all day?

The built-in silent cooling fan stabilises internal temperature and reduces running noise during continuous office operation.

Which cables or connectors must already be present in the HP ProDesk for this power supply to work?

The unit uses the standard ATX wiring layout with a 24Pin mainboard connector, CPU power and SATA plus Molex peripheral leads for drives.

Will the replacement PSU fit the same mounting points and wiring as the original 759045-001 unit in a G2 micro tower?

Yes, it shares the same physical dimensions and connector layout for direct plug-and-play installation in HP ProDesk 400, 405, 480 and 550 G2 MT models.

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