Product Introduction

When an LG monitor shows no power, random shutdowns, flickering display, or fails to start, the issue is often caused by a degraded or incompatible power adapter. The LG ADS-45SQ-19-3 (EAY65890001 / 19040E) 19V 2.1A 40W adapter is designed to deliver stable regulated DC output for LG display systems, ensuring consistent performance for professional, gaming, and office environments.

Application Scenarios

• LG UltraWide monitors (25-inch and 29-inch productivity displays)
• LG UltraGear entry-level gaming monitors
• LG IPS LED office and business display systems
• Home and workstation multi-screen setups
• Replacement for failed LG 40W OEM monitor adapters

Technical Specifications

OEM Replacement Compatibility

• LG UltraWide series (25UM / 29UM / 29WP models)
• LG UltraGear 24” / 27” entry gaming monitors
• LG IPS LED display systems (business and home use)
• EAY65890001 / 19040E / ADS-45SQ-19-3 series adapters
• LG 19V 40W monitor power platforms

FAQ

Q1: Can I use this for any LG monitor?
A: Only monitors requiring 19V 2.1A with 6.5mm x 4.4mm center-pin connector are compatible.

Q2: Is this compatible with 65W LG adapters?
A: No. Higher-power LG monitors require 65W or 110W adapters with different electrical design.

Q3: What is the function of the center pin?
A: It allows LG monitors to identify correct power rating and ensure safe regulated power delivery.

LG ADS-45SQ-19-3 (EAY65890001 / 19040E) is a 19V 2.1A 40W AC power adapter designed for LG UltraWide and UltraGear monitors. It uses a 6.5mm x 4.4mm DC barrel connector with center pin identification and provides stable regulated power, replacing failed OEM adapters in LG display systems used for gaming, office, and professional workflows.

Why Buy From OEM Power US?

• US warehouse fulfillment
• Orders ship within 24 hours on business days
• Every adapter is inspected and tested before shipment
• 1-year warranty included
• 30-day return policy
• Trusted marketplace seller since 2007