Exact Output Specifications
The adapter supports multiple voltage and current levels for precise charging:
- (AVS) 15.0 – 20.0V = 2.0A [up to 3.0A with DPS]
- (AVS) 9.0 – 15.0V = 2.67A [up to 3.0A with DPS]
- Fixed 9.0V = 3.0A
- Fixed 5.0V = 3.0A
These flexible ranges allow the adapter to negotiate the most efficient power delivery for each device connected.
What AVS and DPS Mean
AVS (Adjustable Voltage Supply) enables the charger to fine-tune voltage within a set range, instead of being locked to fixed steps. This ensures smoother power delivery, higher efficiency, and better thermal management.
DPS (Dynamic Power Scaling) allows short bursts of higher current—up to 3.0A in this case—beyond the normal rated output. This dynamic boost helps speed up charging when devices demand extra power, without requiring a physically larger adapter.
Key Features
- Dynamic 60W Max: Although rated at 40W, it can ramp up to 60W for faster top-ups.
- Fast iPhone Charging: Up to 50% charge in about 20 minutes on iPhone 17 models.
- Compact Build: Small enough for pockets or travel kits without sacrificing power.
- Broad Compatibility: Works with iPhones, Apple Watches, and AirPods (USB-C cable sold separately).
- Affordable: Priced at just US $39, making it an easy upgrade for faster charging.
Technical Overview
| Spec | Details |
|---|---|
| Continuous Output | 40W |
| Peak Output | Up to 60W (via DPS boost) |
| Voltage/Current Modes | 15–20V @ 2.0A [3.0A DPS], 9–15V @ 2.67A [3.0A DPS], 9V @ 3.0A, 5V @ 3.0A |
| Model: | A3351 (US) |
| Price | US $39 |
Final Thoughts
With its AVS voltage flexibility and DPS power boosts, Apple’s 40W Dynamic Power Adapter delivers smarter charging that adapts to the device. It’s a small accessory with a big impact on charging speed and efficiency.