Asus AC Adapter 100-240V 50-60Hz: How to Choose the Right Charger for Your ASUS Laptop

ASUS AC Adapter 100–240V 50–60Hz: What it means & how to choose the right ASUS laptop charger

If you’ve been searching for “asus ac adapter 100 240v 50 60hz”, you’re usually looking at the
INPUT rating on the power brick. Good news: 100–240V, 50/60Hz means the adapter can work worldwide.
The part that must match your laptop is the OUTPUT (voltage, amps/watts) and the connector type.

Input: 100–240V (universal)
Output: must match
Connector size matters
USB-C PD vs barrel plug

Your “Charger for Asus” category page is the fastest place to browse by wattage, connector size, part number, and ASUS series.

1) What does “ASUS AC adapter 100–240V 50–60Hz” mean?

This line describes what the charger can accept from the wall outlet:
AC input voltage range (100 to 240 volts) and frequency (50 or 60Hz).
In plain English: it’s a universal input adapter—safe to use in most countries with the correct power cord/plug.

Key takeaway: “100–240V 50/60Hz” is about the wall power. It does not tell you whether the adapter fits your ASUS laptop.
You still must match the Output and the connector.

2) Input vs Output: the #1 buying mistake

Look at a typical power brick label:

Label line Example What it affects Must match?
INPUT 100–240V ~ 50/60Hz Whether it works with your wall outlet/country No (most are universal)
OUTPUT 19V ⎓ 3.42A (65W) / 20V ⎓ 9A (180W) What your laptop actually receives YES (voltage must match)
Connector 4.0×1.35mm / 5.5×2.5mm / USB-C Physical fit + correct charging support YES

3) How to choose the right ASUS laptop adapter (step-by-step)

Step A — Check the original adapter label (best method)

  • Output voltage (V) and current (A) or wattage (W) (examples: 19V 2.37A (45W), 19V 3.42A (65W), 19V 4.74A (90W), 19.5V 9.23A (180W), 20V high-watt gaming adapters).
  • ASUS adapter part number (often shown as “ADP-xx…” or “0A001-…”, etc.).
  • Polarity symbol (rarely changes, but always confirm).
Safe rule: Your new charger should have the same voltage and equal or higher wattage than the original.
(Higher wattage is fine when voltage is the same—your laptop draws only what it needs.)

Step B — Confirm the connector type (don’t guess by photos)

Common ASUS connector types include:

  • 4.0 × 1.35 mm slim round tip (common on many modern VivoBook / smaller ZenBook)
  • 5.5 × 2.5 mm round tip (many older ASUS laptops and some mainstream models)
  • 6.0 × 3.7 mm (often used on higher-power gaming/ROG adapters)
  • USB-C PD (Power Delivery) for newer ZenBook/VivoBook and select models

Step C — Confirm your ASUS laptop model (bottom sticker)

Flip the laptop and record the full model name (series + model code), such as VivoBook/ZenBook/TUF/ROG/ExpertBook/Chromebook model codes.
Many ASUS bottom labels also show the required DC rating (for example “19V …A”).

4) ASUS connector types explained (quick guide)

Connector Common ASUS families Typical wattage range What to watch out for
4.0×1.35mm VivoBook, some ZenBook 33W / 45W / 65W Looks similar to other small tips—measure it if unsure.
5.5×2.5mm Older ASUS + mainstream models 45W / 65W / 90W / 120W Very common; still verify voltage and wattage.
6.0×3.7mm TUF Gaming, ROG Strix/Zephyrus (some) 150W / 180W / 230W / 330W High-power systems: don’t downgrade wattage.
USB-C PD Newer ZenBook/VivoBook + select models 45W / 65W / 90W / 100W+ Must support USB-C PD at the needed wattage.

5) Wattage rules: what happens if you choose 45W vs 65W vs 90W vs 180W?

  • Correct voltage but lower wattage: the laptop may charge very slowly, may not charge under load, or may throttle performance (common on gaming models).
  • Correct voltage and equal/higher wattage: recommended match. The laptop draws only what it needs.
  • Wrong voltage: best case it won’t charge; worst case it can damage the device. Avoid.
Practical tip: If your ASUS came with a 180W/230W/330W adapter (TUF/ROG), do not “downgrade” to 65W even if the connector fits.
Match the original wattage class.
  • Original ASUS adapter part number (e.g., ADP-xx… or 0A001-… codes)
  • Voltage + wattage + connector (example: “ASUS 19V 3.42A 65W charger 5.5×2.5mm”)
  • Full laptop model (example: VivoBook/ZenBook/TUF/ROG model code)

FAQ

Does “100–240V 50–60Hz” mean the adapter is compatible with every ASUS laptop?

No. It only means the adapter can accept wall power in most countries. Compatibility depends on the output voltage,
wattage, and connector/USB-C PD support.

Can I use a higher-wattage ASUS charger if the voltage and connector match?

Usually yes. Keep the same voltage, and choose equal or higher wattage.
The laptop draws what it needs.

My ASUS charger says 19V, but another one says 19.5V. Is that okay?

Don’t assume. Some ASUS models use 19V, others 19.5V or 20V (especially higher power gaming models).
Match the exact output rating shown on your original adapter label or laptop DC requirement label.

USB-C charger: how do I know if my ASUS supports USB-C charging?

If your laptop charges via USB-C, it typically supports USB-C Power Delivery (PD). Confirm via the laptop spec sheet
or the markings near the USB-C port (charging icon), and match a PD charger with sufficient wattage.

What should I send support to confirm compatibility?

A clear photo of your old adapter label (showing Output + part number) and a photo of the laptop bottom label (model code) is the fastest way.

Ready to choose the right ASUS adapter?

Use the universal input info (100–240V 50/60Hz) for travel, but match your laptop by
Output voltage, Wattage, and Connector type.

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