Quick answer: A 4-in-1 charging cable has USB-C and USB-A plugs on the charger end and USB-C and Lightning on the device end, so one cable charges a MacBook, an Android phone, an iPad or an older iPhone. "240W" is the most its USB-C to USB-C path carries under USB PD 3.1; your charger and device set the real speed.
Most homes in India still run a mix of plugs: a USB-C laptop, a USB-C Android phone, an older Lightning iPhone, and a car or wall charger with the old rectangular USB-A port. A 4-in-1 cable covers all of them with one cable in the bag. The "240W" on the box is the part people misread, so this guide explains it plainly.
What is a 4-in-1 charging cable?
It is one cable whose ends give four plug combinations. On the Capes MagLock 4-in-1 those are:
| Charger end | Device end | Typical use |
|---|---|---|
| USB-C | USB-C | Laptops and MacBooks that charge over USB-C, Android phones, iPhone 15 and later, USB-C iPads |
| USB-C | Lightning | iPhone 14 and older from a USB-C charger |
| USB-A | USB-C | USB-C phones from an older wall charger, a car USB port or a laptop's USB-A port |
| USB-A | Lightning | Lightning iPhones and accessories from an older charger or car port |
What does 240W mean on a charging cable?
It means the cable is built to carry up to 240 watts, the highest level in the USB Power Delivery standard. It does not mean your device will charge at 240W.
According to the USB Implementers Forum, USB PD Revision 3.1 raised the ceiling to 240W. Before it, USB PD stopped at 100W, using 20V over USB-C cables rated for 5 amps. Revision 3.1 added 28V, 36V and 48V levels, which allow 140W, 180W and 240W respectively, and the USB-C cable specification was updated to define 240W cables.
Two things have to be true for that much power to flow:
- The cable says it can handle it. USB-C cables rated for 5 amps carry a small "e-marker" chip that tells the charger what the cable can take. Both MagLock 240W cables list a smart e-marker chip on their product pages.
- The charger and the device both support that level. Charger and device agree on a power level each time you plug in. A phone that asks for 25W gets 25W, whatever the cable is rated for.
So a 240W cable is about headroom: it will not be the bottleneck for any USB-C laptop, phone or tablet you plug in today.
Will a 240W cable charge my phone faster?
Only if your current cable was holding it back. A phone charges at the power it negotiates with the charger. If you were using a cheap cable that limits power, a properly rated cable can bring the speed back up to what your phone and charger support. It will never push more power than the phone asks for.
The USB-A ends are a separate case. Old-style USB-A ports don't use USB Power Delivery and supply far less power, so a phone charged through the USB-A end charges at whatever that port provides. Lightning iPhones also draw far less than 240W; the high rating matters for USB-C laptops.
Which devices does a 4-in-1 cable charge?
Anything with a USB-C or Lightning port, from a USB-C or USB-A charger. The limit on speed is almost always the charger or the device.
| Device | Use this end | What sets the speed |
|---|---|---|
| MacBook or USB-C charging laptop | USB-C to USB-C | The laptop's charger wattage |
| Android phone | USB-C to USB-C (or USB-A to USB-C) | Phone and charger support; USB-A ports are slower |
| iPhone 15 or later | USB-C to USB-C | The iPhone and the charger |
| iPhone 14 or older | USB-C to Lightning (or USB-A to Lightning) | The iPhone; Lightning models draw far less power |
| USB-C iPad | USB-C to USB-C | The iPad and the charger |
| Laptop with a round barrel charger | Not supported | These laptops don't charge over USB at all |
The cable also supports data transfer for syncing. The product pages don't list a data speed or video output, so for an external SSD or a monitor, use a cable rated for that job.
Should I buy a 4-in-1 or a single USB-C to USB-C cable?
Buy the 4-in-1 if you have Lightning devices or USB-A chargers in your life; buy the USB-C to USB-C cable if everything you own is USB-C. Many people keep one of each: the dedicated cable on the desk, the 4-in-1 in the bag.
| MagLock 4-in-1 (240W) | MagLock Type C to C (240W) | |
|---|---|---|
| Plugs | USB-C or USB-A to USB-C or Lightning | USB-C to USB-C only |
| Maximum power | Up to 240W (USB-C to USB-C) | Up to 240W |
| E-marker chip | Yes | Yes |
| Build | Flat, braided, magnetic coil design | Flat, braided, magnetic coil design |
| Length | 1 m | 1 m |
| Best for | Travel bag, mixed devices at home | Desk setup, all-USB-C users |
| Warranty | 6 months | 6 months |
"Magnetic" on both cables refers to the coil design: the flat, magnetic cable is made to coil up and resist tangling in a bag.
What should I check before buying any 240W cable?
Look for the e-marker, a stated wattage, and a warranty. A quick checklist:
- E-marker chip named in the specifications, not just "240W" on the box.
- Which plug pairs carry the full rating. On any 4-in-1, the top rating applies to USB-C to USB-C.
- Reinforced ends and a braided jacket, since the bend at the plug is a common failure point.
- Data needs. If you move large files or connect a monitor, check the data rating separately.
- Warranty. Both MagLock cables have a 6-month warranty.
For a tidy desk, pair the cable with the 3-in-1 MagLock Stand, a laptop riser, MagSafe phone stand and tablet stand in one.
Pick your MagLock cable
Compare both in the MagLock charging cables collection. Outside India? Shop on capes.co.
FAQ
Kya 240W cable se phone kharab ho sakta hai?
Nahi. Phone aur charger aapas mein tay karte hain ki kitni power leni hai. 240W cable sirf zyada power le jaa sakta hai; phone utni hi power lega jitni use chahiye.
Can a 4-in-1 cable charge a MacBook?
Yes, through the USB-C to USB-C connection with a USB-C charger. The MagLock 4-in-1 is rated up to 240W on that path, so the charging speed is set by your MacBook and its charger.
Does the 240W rating apply to every end of a 4-in-1 cable?
No. The full rating applies to USB-C to USB-C. The USB-A ends charge at what the USB-A port provides, and Lightning iPhones draw far less power.
What is an e-marker chip?
A small chip in a USB-C cable that tells the charger how much current the cable can carry. USB-C cables rated for 5 amps carry one; both MagLock 240W cables list a smart e-marker chip.
Does the MagLock 4-in-1 cable support data transfer?
Yes, it supports data syncing. The product page does not list a data speed or video output, so use a dedicated cable for external SSDs or monitors.
What warranty do MagLock cables have?
Both MagLock charging cables come with a 6-month warranty.
Written by Capes. Last checked: 9 October 2026.
































































































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