Asus 90W 4.5mm Slim Tip Charger for VivoBook Pro 15 / ZenBook 15 — quick answer
The Asus 90W 4.5mm Slim Tip Charger for VivoBook Pro 15 / ZenBook 15 is a genuine, tested Asus 90W power adapter available at N.N Laptops, Hafeez Center, Lahore for Rs. 6,399. It outputs 19V at 4.74A through the 4.5mm × 3.0mm slim tip connector and is the OEM-spec charger for VivoBook Pro 15, ZenBook 15 UX534, VivoBook S15 S533. Backed by our 30-day check warranty with Lahore delivery and with nationwide delivery via TCS / Leopards.
Full specifications
| Brand | Asus |
|---|---|
| Wattage | 90W |
| Output Voltage | 19V |
| Output Current | 4.74A |
| Connector Type | 4.5mm × 3.0mm slim tip |
| AC Input | 100-240V, 50-60Hz (Pakistan compatible) |
| Cable Length | ~1.8m (brick to laptop) + ~1.5m wall cord |
| Compatible Models | VivoBook Pro 15, ZenBook 15 UX534, VivoBook S15 S533, VivoBook 17 |
| Condition | Genuine — Tested, bench-tested for voltage stability |
| Warranty | 30-day check warranty |
Compatibility — which laptops does this fit?
This 90W Asus charger is the OEM-spec power adapter for:
Wattage and connector are the two factors that decide compatibility. The 4.5mm × 3.0mm slim tip 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 0314 4000131 with the exact spec sticker text and Sayam will confirm before you buy. Many Asus models from 2018-2020 use this tip, including some older ZenBook Flip series — but always double-check.
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. We bench-test each unit for output voltage and ripple before listing, so you get a charger that's as good as new.
What you get
- 1× Asus 90W adapter brick
- 1× Pakistan/UK 3-pin AC cord
- 30-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. For heavy tasks like video editing or gaming, the 90W ensures the laptop doesn't lose battery under load — unlike a lower-wattage charger that can't keep up.
Why 90W is the sweet spot for your Asus
Asus VivoBook Pro and ZenBook 15 series typically ship with 90W adapters. While a 65W charger might work for light use, it won't charge the battery during intense workloads and can cause the system to throttle. A 120W charger is safe but bulkier and unnecessary. The 90W provides the perfect balance — enough power to charge and run full performance without extra weight or cost. If you're upgrading from a lost or broken charger, stick with the original spec.
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 90W, 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. 4.5mm × 3.0mm slim tip 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.
Still unsure? WhatsApp 0314 4000131 the model number of your laptop and Sayam will match it in seconds.
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 buy. Lahore deliveries are free; nationwide via TCS / Leopards reach Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, Sialkot in 1-3 working days. WhatsApp 0314 4000131 to confirm stock.
Browse all our laptop chargers laptop parts, or our complete laptop battery range at nnlaptops.com.
Warranty & after-sales support
Every charger carries our standard 30-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. We've been serving customers in Hafeez Center for years — trust is earned.
Frequently asked questions
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.
Will this 90W charger work with my VivoBook Pro 15?
Yes. This adapter outputs 19V at 4.74A which exactly matches the VivoBook Pro 15 (and all other listed models). The 4.5mm × 3.0mm slim tip connector is the OEM specification — no adapter or convertor required. Plug it in and you're charging at full speed.
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.
Is this an original or compatible charger?
Both options come through our stock. This unit is a genuine Asus pull-out from working laptops, fully tested for output voltage stability, ripple, and protection circuits. We also stock high-grade compatible versions if budget is tight — just tell us on WhatsApp 0314 4000131 which you prefer.
What about the price — Rs. 6,399 — is it worth it?
For a genuine Asus 90W charger that's bench-tested and backed by a 30-day warranty, Rs. 6,399 is competitive. A new OEM charger at Asus service centre costs double. And a cheap non-branded one may fail in weeks or risk your laptop. Invest in reliability.
N.N Laptops — Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore. WhatsApp / Call 0314 4000131. Lahore delivery, with nationwide delivery via TCS / Leopards, 30-day check warranty.
