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Black rectangular HP 120 W AC adapter with label showing 19.5 V 6.15 A

HP Refurbished

HP 740243-001 120 W AC adapter

SKU CH-H8GR-D3ANG MPN 740243-001

120 W AC adapter delivering 19.5 V DC at 6.15 A for compatible HP EliteDesk and 400 series All-in-One PCs

  • Product typeAC Adapter
  • Delivers 120 W maximum output power for reliable performance
  • Provides 19.5 V DC output voltage for stable operation
  • Supports 120 V AC input voltage for standard power compatibility
  • Compatible with EliteDesk 705 G1 and 400 AiO series desktops
  • Refurbished HP AC adapter with 6.15 A maximum output current

HP 120 W AC adapter for All-in-One PCs

This refurbished HP power supply delivers 120 W at 19.5 V DC with a maximum output current of 6.15 A. It accepts a 120 V AC input and is designed for HP All-in-One computers. The unit replaces a lost or failed original adapter for compatible desktop mini and AiO systems.

Compatible EliteDesk and 400-series AiO models

The adapter fits the EliteDesk 705 G1 Base Model Desktop Mini PC and numerous 400-series All-in-One configurations including G1820T, G1840T, G3240T, i34150T, i54590T and i74770T variants. Buyers with other HP desktops, notebooks or non-HP hardware should look for a supply matched to their specific model.

120 W maximum output power

The single specification that decides fit is the 120 W rating combined with the 19.5 V DC output. Only systems that require exactly this voltage and power level will operate correctly with this adapter.

How it compares

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

Price $79.99
Cheaper than about 77% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameHP
Product typeAC Adapter
Size & build
Shipping weight2.31 kg
Package size127 × 76 × 51 mm

Questions about this item

Does the 120 W maximum output power limit sustained performance on an EliteDesk 705 G1?

The adapter delivers up to 120 W at 19.5 V DC and 6.15 A, which matches the EliteDesk 705 G1 power requirement for continuous operation.

How much heat or fan noise does the 120 V AC input produce during all-day use?

As a sealed AC adapter with no internal fan, it runs silently; only normal warmth from 120 W conversion is expected during extended use.

Which HP all-in-one models must I already own for this 740243-001 to work?

It is compatible with HP 400 and 400PO AiO series including G1820T, G1840T, G3240T, i34150T, i54590T and i74770T configurations.

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