Asus 120W Big Barrel Charger for ROG Strix / TUF Gaming F15 — quick answer
The Asus 120W Big Barrel Charger for ROG Strix / TUF Gaming F15 is a genuine, tested Asus 120W power adapter available at N.N Laptops, Hafeez Center, Lahore for Rs. 7,800. It outputs 19V at 6.32A through the 6.0mm × 3.7mm big barrel connector and is the OEM-spec charger for ROG Strix G15, TUF Gaming F15, TUF Gaming A15. Backed by our 15-day check warranty with free Lahore delivery and Cash on Delivery across Pakistan.
Full specifications
| Brand | Asus |
|---|---|
| Wattage | 120W |
| Output Voltage | 19V |
| Output Current | 6.32A |
| Connector Type | 6.0mm × 3.7mm big barrel |
| AC Input | 100-240V, 50-60Hz (Pakistan compatible) |
| Cable Length | ~1.8m (brick to laptop) + ~1.5m wall cord |
| Compatible Models | ROG Strix G15, TUF Gaming F15, TUF Gaming A15, VivoBook Pro 15 OLED, ROG Zephyrus G14 |
| Condition | Genuine — Tested |
| Warranty | 15-day check warranty |
Compatibility — which laptops does this fit?
This 120W Asus charger is the OEM-spec power adapter for:
Wattage and connector are the two factors that decide compatibility. The 6.0mm × 3.7mm big barrel connector physically matches only the listed models — do not force it into a different-size port. If you have a related but different model, WhatsApp us with the exact spec sticker text and we'll confirm before you buy.
What's in the box & build quality
Every charger we ship includes the brick-to-laptop cable (fixed), the Pakistan 3-pin C5 'mickey-mouse' wall cord, and a soft pouch for travel. Build quality on this Asus unit is exactly what came with the laptop new — same chassis injection, same internal magnetic shielding, same cable strain-relief.
What you get
- 1× Asus 120W adapter brick
- 1× Pakistan/UK 3-pin AC cord
- 15-day check warranty card
Real-world use — what to expect
Plug it in and the laptop charges at full speed: 0-50% in about 35-45 minutes on most modern Asus machines, full charge in 1.5-2 hours. The brick warms up to 40-45°C under load — that's normal for a switching power supply, not a defect. The white LED on the tip turns on the moment AC is connected, so you have instant visual confirmation the brick is alive even if the laptop battery is fully drained.
How to verify you've got the right charger
Three checks before you buy:
1. Wattage
Look at the sticker on the bottom of your current charger — if it says 120W, you're matched. A higher-wattage Asus charger is also safe (laptop only draws what it needs); a lower-wattage one will run the laptop but won't charge under heavy load.
2. Connector size
Use a calliper or compare to the sample photo. 6.0mm × 3.7mm big barrel is the only fit — don't force a wrong-size pin.
3. Voltage
Must be 19V. Never use a Asus charger from a desktop or printer — those are 12V DC and will damage the laptop board.
Where to buy in Lahore — and shipping nationwide
We're at Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore. Walk-in welcome — bring your laptop and we'll test the charger on it before you pay. Lahore deliveries are free; nationwide via TCS / Leopards (Cash on Delivery) reach Karachi, Islamabad, Faisalabad, Multan, Peshawar in 1-3 working days. WhatsApp 0314 4000131 to confirm stock.
Browse all our laptop chargers and laptop parts, or our complete laptop battery range.
Warranty & after-sales support
Every charger carries our standard 15-day check warranty — if the brick fails on first install, develops an output fault, or shows AC ripple during the test period, bring it back to the shop with the invoice for a full replacement or refund. No questions asked within the warranty window.
Frequently asked questions
Will this 120W charger work with my ROG Strix G15?
Yes. This adapter outputs 19V at 6.32A which exactly matches the ROG Strix G15 (and all other listed models). The 6.0mm × 3.7mm big barrel connector is the OEM specification — no adapter or convertor required. Plug it in and you're charging at full speed.
What about the new USB-C version — should I switch?
If your laptop has a Thunderbolt or USB-C charging port (most Asus models from 2019 onwards do), USB-C PD is the future-proof choice — you can charge from any compatible 65W+ brick, phone bank, or hub. For older slim-tip / barrel models, stick with the original-style charger listed here.
Can I use a higher-wattage charger instead?
Yes, higher wattage is safe as long as the voltage matches. A 145W or 165W Asus brick with the same 6.0mm × 3.7mm big barrel works fine and will not damage the laptop. The laptop only draws what it needs — extra headroom helps for fast-charge mode and heavy GPU loads.
Does the charger include the wall cable?
Yes. Every charger ships with the Pakistan 3-pin C5 (mickey-mouse) AC cable to the wall. The brick-to-laptop side is a fixed cable for slim-tip and barrel models, and a detachable USB-C cable on USB-C models.
N.N Laptops — Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore. WhatsApp / Call 0314 4000131. Free Lahore delivery, Cash on Delivery across Pakistan, 15-day check warranty.
