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Black rectangular AC adapter with 3-prong inlet and 5.5×2.5 mm barrel connector

E-buy

E-buy AC Adapter 19V 4.74A 90W 5.5×2.5mm 3-prong

SKU CH-5P5A-V1GSJ

19 V 4.74 A 90 W AC adapter with a 5.5×2.5 mm connector and three-prong plug, supplied with a power cord

  • TypeAC Adapter
  • Delivers 90 W for demanding ASUS ROG systems
  • Wide 100-240 V input suits global mains voltages
  • 5 mm × 2.5 mm barrel fits listed ASUS models
  • 3-prong outlet plug provides grounded connection
  • Includes free power cord for immediate use

What this adapter powers

This 90 W AC adapter delivers 19 V at 4.74 A through a 5.5 mm × 2.5 mm barrel connector and a three-prong inlet. It replaces part numbers PA-1900-42, EXA1202YH, ADP-90YD B and PA-1900-30 for compatible ASUS ROG Swift PG279Q monitors and X750JA-DB71, X550D and K550D notebooks. Input accepts 100-240 V at 50-60 Hz for worldwide use.

Installation and common issues

Swap the old brick by matching the output voltage, current and barrel size exactly; the three-prong cord plugs into any standard IEC socket. The most frequent problem is ordering a unit with a different tip diameter or polarity, so verify the 5.5 mm × 2.5 mm dimensions before purchase. A free power cord is included in the package.

Who should buy and who should not

Suits owners of the listed ASUS models who need a direct 90 W replacement with the specified connector. Buyers whose devices require a different voltage, wattage or tip size should look elsewhere, as should anyone needing USB-C Power Delivery or a proprietary multi-pin connector not covered by the listed part numbers.

Highlights

  • Delivers 90 W for demanding ASUS ROG systems
  • Wide 100-240 V input suits global mains voltages
  • 5 mm × 2.5 mm barrel fits listed ASUS models
  • 3-prong outlet plug provides grounded connection
  • Includes free power cord for immediate use

Specifications

TypeAC Adapter

Questions about this item

How do I confirm the adapter is delivering 19V at 4.74A after I plug it in?

Use a multimeter on the 5.5 mm × 2.5 mm tip to verify 19V output; the monitor or notebook should power on and charge without the 90W brick overheating.

The box lists one adapter and one power cord — is the 3-prong mains lead included or must I buy it separately?

The 3-prong mains lead is included in the package; no separate cord purchase is required.

My part number is PA-1900-42 — does this unit replace it or do I need the EXA1202YH version instead?

This adapter replaces PA-1900-42, EXA1202YH, ADP-90YD B and PA-1900-30; any of those part numbers match the 90W 19V 4.74A specification.

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