DELTA ELECTRONICS ADP-90MD 90W 19V 4.74A power adapter

90W 19V power adapter for laptops

The Delta ADP-90MD H delivers 90 watts at 19 volts and 4.74 amps for compatible notebooks and mobile workstations. It accepts a universal 100-240V input at 50-60Hz, so it works on mains supplies worldwide. The unit ships with a detachable power cord for immediate use. Buyers who need a higher-wattage supply for larger gaming laptops cannot use this model.

Capacity and headroom at 90 watts

At 90W the adapter comfortably powers mainstream ultrabooks, business notebooks and thin-and-light machines that draw up to 4.74A. It will run out of headroom on devices that demand more than 90W, causing the supply to shut down or the system to throttle. The 1.5A input rating at 100-240V means it draws modest current from the wall even at full load. Users with dual-GPU or desktop-replacement laptops should verify their device's rated draw before purchasing.

Build quality and daily use

The adapter body is tested for broken wires, twisted cables and loose internal particles, and includes safeguards against incorrect voltage, short circuit and internal overheating. Minor cosmetic marks such as scratches or dust may be present but do not affect function. A standard IEC power cord is included for domestic orders; overseas shipments omit the cord so a local cable must be sourced separately. The barrel jack fits laptops that specify a 19V 4.74A centre-positive connector.