Power Adapter Charger for Asus Q551LN-BSI708

Power Adapter Charger for Asus Q551LN-BSI708

The Asus Q551LN-BSI708 is a premium, high-configuration 15.6-inch 2-in-1 convertible touchscreen laptop. It is driven by an Intel Core i7-5500U processor and paired with dedicated NVIDIA GeForce 940M graphics. Because this specific configuration features a dedicated GPU alongside a high-draw Core i7 processor, managing sudden power spikes during rendering, multitasking, or photo/video editing requires a completely stable, noise-filtered direct current (DC) power source.

Using an incorrect, unverified, or underpowered aftermarket charger with this high-spec model is risky. Substandard power units often lead to electrical ripple noise, which causes erratic “ghost-touch” anomalies on the touchscreen panel, cursor drifting on the trackpad, and hazardous heat retention inside the internal lithium-polymer battery cells.

Asus Q551LN-BSI708 Product Overview

This verified replacement power brick is built to conform precisely to the strict electrical load metrics of the Asus Q551LN-BSI708 hardware architecture. While contemporary ultra-slim convertibles have migrated toward delicate micro-pins, the Asus Q551LN-BSI708 relies on a heavy-duty 5.5mm outside diameter by 2.5mm inside diameter (5.5mm × 2.5mm) straight circular barrel jack. This thick connector maximizes the physical contact surface area within the laptop’s side charging port, neutralizing loose connections, overheating at the junction point, or accidental arc-fault sparks.

Asus Q551LN-BSI708 Key Features

• Heavy-Duty 5.5mm × 2.5mm Barrel Pin: Fits securely into the chassis port to eliminate connection dropouts, wobbling, or port damage under heavy usage.

• High-Capacity 19V 4.74A Power Supply: Delivers 90W of clean energy to comfortably feed the Core i7 CPU and dedicated NVIDIA graphics concurrently under peak loads.

• Premium Smart Protection Core: Internal multi-stage defenses prevent damage from over-voltage (OVP), over-current (OCP), and short-circuit (SCP) line issues.

• Universal Mains Auto-Switching: Built to adapt seamlessly across a universal input range of AC 100V to 240V, making it highly safe for global travel.

Asus Q551LN-BSI708 Technical Specifications

Asus Q551LN-BSI708 Price Breakdown

Sourcing a high-tier, well-insulated 90W power block guarantees that your notebook maintains ample thermal headroom while protecting premium processing lines:

Asus Q551LN-BSI708 Pros & Cons

Pros:

• Rock-Solid Mechanical Hold: The solid 5.5mm x 2.5mm plug barrel sets securely into the chassis, protecting the internal motherboard connector if the cable is pulled out suddenly.

• Ample Thermal Headroom: The 90W design operates well under its threshold, keeping the charger running cool even when charging a dead battery under load.

• High Part Standardization: Because this 5.5mm profile is widely utilized, replacement adapters and backup accessories are highly accessible across local markets.

Cons:

• Not Compatible with Ultra-Thins: The large tip will not fit or charge newer Asus ZenBook or VivoBook notebooks that feature 4.0mm or 3.0mm thin-pins.

• Larger Footprint: The combined 90W brick and rugged 3-prong AC grounding cable require slightly more space in a laptop sleeve or travel bag.

Asus Q551LN-BSI708 Verdict

To guarantee unhindered performance and safe power management on your Core i7 convertible, using a replacement charger outputting 19V matching a 5.5mm × 2.5mm circular barrel plug is crucial. Buying a premium 90W power supply instead of a lower-tier 65W option provides the essential electrical support needed to prevent battery charging stalls, system throttling, or touchscreen erratic behavior when your NVIDIA graphics card kicks into action.