The Mac Specialistindependent accessory compatibility lab

FAQ

Questions we get asked

Using this site

Are you Apple, or an Apple reseller?

No. The Mac Specialist is an independent website, not affiliated with Apple Inc. We don’t sell anything ourselves. Product buttons go to Amazon.co.uk, where Amazon or a third-party seller handles the sale. Apple, iPhone, iPad, Mac, Apple Watch, AirPods and MagSafe are trademarks of Apple Inc.

How do you decide whether something “works”?

We record each Apple device’s connector, port speed, wireless charging and display support from Apple’s own tech specs. Then a published rule for each kind of accessory compares the two. For example, a USB-C to Lightning cable works with Lightning devices and is not compatible with USB-C ones. Model-specific items such as cases use the maker’s list of models. See how we check.

Why don’t you show prices or star ratings?

Prices change constantly and Amazon shows the current one. We don’t show star ratings or reviews because we haven’t tested these products, and we won’t publish ratings we can’t stand behind. Our “why we’d pick it” notes are reasoning from the maker’s specs.

Charging

Is it safe to use a higher-wattage charger than my device needs?

With USB-C Power Delivery chargers, yes. The charger and the device agree how much power to send. Apple says you can charge a USB-C Mac with any USB PD adapter, and suggests using a Mac laptop’s higher-wattage adapter to charge an iPad faster. Buy from a reputable seller, though. See buying chargers safely.

Sources: Apple Support – Use a power adapter with your Mac · Apple Support – Charge and connect with the USB-C port on your iPad

What charger do I need to fast charge my iPhone?

Apple says iPhone 12 and later need a 20W or higher USB-C PD adapter to fast charge. iPhone 17 models need 40W for their fastest figure. iPhone 18 Pro needs a 60W-capable USB PD 3.1 adapter with AVS and a 60W-capable cable. Your iPhone’s device page shows Apple’s exact wording. More in charging speeds.

Sources: Apple Support – Fast charge your iPhone · Apple (UK) – iPhone 18 Pro technical specifications

My new MacBook didn’t come with a charger. Which one do I need?

Apple’s UK spec pages for current MacBooks say “Power adapter sold separately”, and list a minimum wattage needed to charge. That’s 30W for 13-inch MacBook Air (M5), 35W for the 15-inch, 20W for MacBook Neo, and more for MacBook Pro. For fast charging, Apple quotes 70W or higher for MacBook Air (M5). Pick your Mac in the chargers filter and chargers below the minimum show as not compatible.

Sources: Apple (UK) – MacBook Air tech specs · Apple (UK) – MacBook Pro tech specs

Cables & ports

Aren’t all USB-C cables the same?

No. USB-C is just the plug shape. Cables differ in power (60W or 240W) and data speed (480Mb/s up to 80Gb/s, or 120Gb/s with Thunderbolt 5). Apple’s own charge cables move data at USB 2 speed. See USB-C cables explained.

Sources: USB-IF – USB Type-C cable and connector language guidelines (PDF)

Will my Lightning accessories work with a USB-C iPhone?

Yes, with Apple’s USB-C to Lightning Adapter, which handles charging, data and audio. Apple says it charges at up to 24W and moves data at USB 2 speed. See moving from Lightning to USB-C.

Sources: Apple Support – About the USB-C to Lightning Adapter

MagSafe & Qi2

Should I buy a MagSafe charger or a Qi2 charger?

Both snap onto iPhone 12 and later (except iPhone 16e). For the fastest wireless charging on recent iPhones, choose Apple’s current MagSafe Charger or a charger certified for Qi2 25W, and use a 30W or higher adapter. Plain Qi pads still work, but more slowly and without magnets. See MagSafe vs Qi2 vs Qi.

Sources: Apple Support – How to use your MagSafe Charger with iPhone

Can a MagSafe charger charge my Apple Watch?

No. Apple Watch uses its own magnetic charger, which is why 3-in-1 stands have a separate watch puck. Several AirPods cases can charge on an Apple Watch charger, including the AirPods Pro 2 and Pro 3 MagSafe cases and the AirPods 4 (ANC) and AirPods 5 Wireless Charging Cases.

Sources: Apple Support – Charge your AirPods

Mac set-ups

How many monitors can I connect to my Mac?

It depends on your Mac’s chip, not the dock. For example, MacBook Neo supports one external display, MacBook Air (M4/M5) up to two, and MacBook Pro M5 Max up to four. Apple says a hub doesn’t raise the maximum. Each Mac’s device page shows Apple’s figure. See choosing a hub or dock.

Sources: Apple Support – How many displays can be connected to MacBook Pro · Apple Support – Connect displays to your Mac

Buying safely

Why doesn’t this USB-C charger have an MFi badge?

Because it doesn’t need one. Apple’s MFi FAQ says USB-C charging accessories are outside the MFi programme. For USB-C, look for USB-IF certification, UK safety markings and a reputable seller. See MFi explained.

Sources: Apple – MFi Program FAQs

How do I avoid fake chargers on Amazon?

Check who the seller is, not just the brand. Electrical Safety First advises buying from reputable retailers rather than third-party sellers online. GOV.UK suggests checking the seller’s name, location and history, and looking for safety markings and the maker’s name and address. See buying chargers safely.

Sources: Electrical Safety First – USB chargers · GOV.UK – Consumer products: staying safe