Power adapter BLOW 4174# for Toshiba 19V 3.95A 75W — DC plug 5.5×2.5 mm

AC/DC power adapter BLOW 4174# provides a regulated 19V output at 3.95A (75W) through a 5.5×2.5 mm DC plug, designed as a compatible power supply for Toshiba laptops that accept this voltage and connector size. The adapter converts mains AC to stable DC output suitable for powering and charging portable computers and replacing original or damaged adapters when voltage, current and plug dimensions match.

Advantages

This power adapter offers a compact and lightweight design with regulated output to protect connected devices from voltage fluctuations. The standard 5.5×2.5 mm barrel connector ensures mechanical compatibility with many laptop models that use the same plug size. Built-in protection against short circuit, overcurrent and overvoltage helps maintain reliable operation and prolong the life of both the adapter and the laptop battery when used under specified conditions.

Suitable for

• Charging and powering Toshiba laptops that require 19V and accept a 5.5×2.5 mm DC plug
• Replacing an original adapter with the same voltage, current and connector dimensions
• Using as a spare adapter for home, office or travel when mains power is available

Key specifications

• Output voltage: 19V DC
• Output current: 3.95A
• Maximum output power: 75W
• DC connector size: 5.5 × 2.5 mm (barrel plug)
• Input: mains AC (standard range for desktop adapters)
• Protection features: overcurrent, overvoltage, short-circuit protection

How to use

Confirm that the laptop’s required voltage and polarity match the adapter specifications and verify that the 5.5×2.5 mm plug fits securely in the laptop power socket. Connect the adapter to the mains supply using the provided AC cable, then insert the DC plug into the laptop. Check that the laptop indicates charging or powered operation. Disconnect the adapter from the mains before unplugging the DC connector from the laptop to avoid arcing. Use the adapter on a stable, ventilated surface and avoid covering the unit while in operation.

Usage recommendations

Use this adapter only with laptops that specify 19V and support a 5.5×2.5 mm barrel connector and matching polarity. Do not attempt to use adapters with different voltages or incompatible connector sizes. If the laptop shows abnormal behavior, overheating, or charging issues after installing the adapter, stop use and consult a technician. Store the adapter in a dry place and disconnect from mains when not in use for extended periods.