myVolts AC Adapter 19V 3.42A 65W for Dynabook Tecra A40-G-BTO A40-E BTO A30-E-BTO

Compatible AC Adapter for Dynabook Tecra

This 65 W adapter powers Dynabook Tecra A40-G-BTO, A40-E BTO and A30-E-BTO laptops. It delivers a steady 19 V at 3.42 A and accepts worldwide input from 100 to 240 VAC at 50 to 60 Hz. Built-in safeguards protect against incorrect voltage, short circuit and internal overheating. The unit is CE, FCC and RoHS certified and ships as a brand-new replacement, not an original Dynabook product.

Sustained-load behaviour

Smart Chip Technology regulates output continuously so the charger maintains its rated 65 W during extended use without overheating. Over-voltage, over-current and short-circuit protections engage automatically if limits are exceeded. The adapter is also compatible with 45 W requirements, allowing it to run cooler when the connected system draws less power. These features keep performance stable over long work sessions.

Deciding specification: 19 V 3.42 A 65 W output

The single figure that determines fit is the 19 V, 3.42 A, 65 W output rating. If your Tecra model requires exactly this voltage and current, the adapter will operate correctly; if the laptop needs a different voltage or higher wattage, this unit will not meet the requirement. No other specification in the listing overrides this electrical match.