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Product Description
Next-generation charging in a pocket-sized form factor. The 40W Dynamic Power Adapter (A3353) is one of Apple’s most advanced charging solutions. It is uniquely engineered to deliver a sustained 40W of power but can intelligently "boost" its output up to 60W in short bursts. This allows it to offer the performance of a much larger charger while remaining roughly the same size as Apple's standard 20W brick.
Key Features
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Dynamic Power Delivery: Uses the latest USB PD 3.2 with Adjustable Voltage Supply (AVS). Unlike standard chargers that stick to fixed voltages, this adapter can negotiate the exact voltage your device needs for the most efficient and fastest charge possible.
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Intelligent 60W Max Boost: Specifically designed to deliver up to 60W of power when your device needs it most (typically when the battery is very low). As the adapter warms up, it smoothly transitions back to a stable 40W output.
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Ultra-Compact Design: Despite having double the power of a standard charger, it maintains a highly portable, pocket-sized footprint with foldable prongs (UK 3-pin version), making it the perfect travel companion.
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Optimized for iPhone 17 & iPhone Air: Paired with the latest iPhone models, it can charge an iPhone 17 to 50% in approximately 20 minutes, and the iPhone Air to 50% in about 30 minutes.
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Versatile Compatibility: While optimized for the newest iPhones, it is fully backward compatible with all USB-C-enabled devices, including iPads, older iPhones, and even MacBook Air models.
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Thermal Intelligence: Built-in internal thermistors monitor temperature in real-time, adjusting the power output dynamically to ensure your device and the charger stay within safe operating limits.
Product Specifications
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Brand: Apple
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Model Number: A3353
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Manufacturer Code: MGTV4B/A (UK/Ireland/UAE 3-pin version)
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Type: USB-C Power Adapter
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Output Power: 40W Sustained / Up to 60W Dynamic Max
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Technology: USB Power Delivery 3.2 (AVS / DPS)
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Input: 100-240V ~ 50/60Hz 1.5A
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Dimensions: 45.7 x 45.7 x 28.1 mm (approx. same size as 20W charger)
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Plug Type: Type G (UK 3-prong foldable)
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Warranty: 12-Month Apple Limited Warranty
What’s in the Box?
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1 x Apple 40W Dynamic Power Adapter with 60W Max (MGTV4B/A)
UK orders
Most orders are delivered either via DPD or Royal Mail weekdays (between 8:30am to 6:00pm) to your door within the time specified. Please note for most items the recipient is required to sign for the goods on delivery. Shipping takes place only on working days therefore no dispatches are made on weekends or public holidays.
UK shipping
| DELIVERY TIME | COST | |
| Royal Mail 48 | 2 - 3 working days | Free |
| Royal Mail Tracked 48 | 2 working days | £3.50 |
| Royal Mail Tracked 24 | 1 working day | £4.50 |
| DPD | 1 working day | £6.50 |
| DHL | 1 working day | £7.50 |
| UPS | 1 working day | £8.00 |
The estimated delivery times are only if the order is placed before the cut off time of 2:30pm.
Progress on Royal Mail tracked orders can be checked by visiting https://www.royalmail.com/
International orders* -
Due to Brexit changes all other countries are DDU (Delivery Duty Unpaid): the indicated price of the products does not include taxes and VAT. The recipient is responsible for all import fees, custom taxes and local taxes imposed by the country where shipment is made. The payment of these taxes is required in order to relieve the order from custom charges.
We cannot predict what the amount to pay for taxes and customs will be, therefore we ask that you check before making an order. Your shipping costs are already included in the total of your final order. In any case, the courier can present you with a separate invoice for the local taxes that need to be paid.
International Shipping Rates
For international shipping, the customer is responsible for any local charges for example duty, taxes, brokerage fees etc. that may be incurred.
Progress on international orders can be checked by visiting https://www.packet.
European orders
| DELIVERY TIME | COST | |
| Europe – Standard Economy shipping | 7 - 21 working days | £6.50 |
| Europe – International Tracked Shipping | 7 - 21 working days | £7.50 |
| Europe – Express shipping | 3 - 5 working days | £25.00 |
* Please note: There will be an additional surcharge to be paid for shipping to Islands and certain extended areas in Spain, Portugal and Italy. It is your responsibility to advise us of this remote zone (or check with us) before placing an order stating that your delivery falls outside the mainland area. This will prevent any additional time and charges.
Rest of the World
| DELIVERY TIME | COST | |
| Standard Economy shipping | 7 - 21 working days | £7.50 |
| International Tracked Shipping | 7 - 21 working days | £8.50 |
| Express shipping | 3 - 5 working days | £30.00 |