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Black rectangular 90W AC adapter with 5.5 by 2.5mm barrel plug and detachable power cord

DTK DL-90W 19V 4.74A 90W AC Adapter 5.5 x 2.5mm

SKU CH-Q6KN-PJN2V

19 V 4.74 A 90 W AC adapter with 5.5 mm × 2.5 mm barrel plug and short-circuit, over-heat and over-current protection

  • CompatibilityPC
  • Battery Voltage19V
  • Battery Capacity19 volts
  • AC Adapter Voltage19V
  • AC Adapter Current4.74A
  • AC Adapter Output Power90W
  • Delivers 90W output for reliable laptop charging
  • Accepts 100-240V input for worldwide use
  • Fits devices with 5.5 x 2.5mm barrel connector
  • Includes short circuit, over current and over heat protection
  • CE, FCC and IEC certified for safety compliance

Compatible 90 W AC adapter

The DTK DL-90W delivers 19 V at 4.74 A for 90 W total output through a 5.5 mm by 2.5 mm barrel connector. It replaces original chargers for a wide range of Asus, Toshiba, Lenovo and Medion notebooks that require this exact voltage and tip size. The unit includes a detachable AC power cable and operates on 100-240 V mains input.

Output capacity and headroom

Rated at 90 W, the adapter comfortably powers mainstream laptops and charges their batteries under normal workloads. It will run out of headroom on systems that draw more than 90 W during heavy CPU or GPU load, causing the charger to throttle or the battery to drain despite being plugged in. The 5.5 x 2.5 mm tip excludes USB-C and square-tip models entirely.

Upgrade context and fit

This unit replaces a lost, damaged or lower-wattage 19 V barrel charger when the original specification matches 4.74 A and the 5.5 x 2.5 mm connector. The jump is worth it only if the previous adapter was under-rated or failed; it adds no benefit for laptops that already shipped with a 90 W unit of the same tip geometry.

Highlights

  • Delivers 90W output for reliable laptop charging
  • Accepts 100-240V input for worldwide use
  • Fits devices with 5.5 x 2.5mm barrel connector
  • Includes short circuit, over current and over heat protection
  • CE, FCC and IEC certified for safety compliance

Specifications

BrandDTK
ModelDL-90W
Part NumberDL-90W
CompatibilityPC
Battery Voltage19V
Battery Capacity19 volts
AC Adapter Voltage19V
AC Adapter Current4.74A
AC Adapter Output Power90W
FeaturesShort Circuit Protection, Barrel Plug 5.5mm x 2.5mm, Corded Electric, UL, 1, type_a_2pin_na, 19 volts, 4.74 amps
Dimension11.5 cm x 4.5 cm x 3 cm
Weight0.408 kilograms

Questions about this item

Will the 5.5 x 2.5 mm barrel connector fit the charging port on my older Asus X550CA laptop?

Yes, the adapter uses a 5.5 mm by 2.5 mm barrel tip that matches the port on listed Asus models including the X550CA.

How can I confirm the DTK DL-90W is delivering the correct 19 V 4.74 A output once plugged in?

The unit supplies 19 V at 4.74 A for 90 W total; a working charger will power the laptop and charge the battery without triggering short-circuit or over-current protection.

Does the package include both the AC adapter brick and a mains power cable, or must I buy the cable separately?

The box contains one AC charger and one AC power cable, so no separate cable purchase is required.

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