# MagSafe connector

> series of proprietary, magnetically attached wired power connectors from Apple

**Wikidata**: [Q1329193](https://www.wikidata.org/wiki/Q1329193)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/MagSafe)  
**Source**: https://4ort.xyz/entity/magsafe-connector

## Summary  
The MagSafe connector is Apple’s series of proprietary, magnetically‑attached wired power connectors introduced on 10 January 2006. It uses a built‑in permanent magnet and a five‑pin layout (GND, V+, charge‑control, V+, GND) to deliver DC power while allowing the cable to detach safely if pulled.

## Key Facts  
- **Inception:** 10 January 2006 (Apple’s first magnetic DC power connector).  
- **Design:** Five‑pin configuration – Pin 1 GND, Pin 2 V+, Pin 3 charge‑control, Pin 4 V+, Pin 5 GND.  
- **Core component:** A permanent magnet that aligns and secures the connector to the device.  
- **Classification:** Subclass of DC power connector, proprietary hardware, and external computer connector.  
- **Aliases:** Apple MagSafe, MagSafe, Universal MagSafe.  
- **Replaced by:** USB‑C (Apple transitioned away from MagSafe for newer Macs).  
- **Distinct from:** MagSafe wireless charger (a separate, magnetically‑attached wireless power system launched 13 Oct 2020).  
- **Visual assets:** Logo – `https://commons.wikimedia.org/wiki/Special:FilePath/MagSafe_(logo).svg`; Image – `https://commons.wikimedia.org/wiki/Special:FilePath/Apple_magsafe_tight.jpg`.  

## FAQs  
### Q: What is the MagSafe connector?  
A: It is Apple’s proprietary, magnetically‑attached wired power connector that delivers DC electricity to laptops and other devices while preventing accidental cable pulls from damaging the hardware.  

### Q: How does the magnetic attachment work?  
A: A permanent magnet inside the connector aligns with a matching magnet in the device, creating a secure yet easily releasable connection; a sudden tug causes the connector to detach cleanly.  

### Q: Is MagSafe still used on current Apple computers?  
A: No. Apple has phased out MagSafe in favor of USB‑C for newer Mac models, though legacy devices still rely on the original MagSafe design.  

### Q: How is MagSafe different from the MagSafe wireless charger?  
A: The wired MagSafe connector supplies power through a physical cable and five‑pin DC interface, whereas the MagSafe wireless charger (introduced 2020) transfers power inductively without a cable.  

### Q: What are the pin functions on a MagSafe connector?  
A: Pins 1 and 5 are ground (GND), pins 2 and 4 provide the positive voltage (V+), and pin 3 is a charge‑control pin that communicates charging status.  

## Why It Matters  
The MagSafe connector reshaped laptop power design by addressing a common failure point: accidental cable pulls. Its magnetic coupling allowed the power cable to detach harmlessly, reducing the risk of broken ports, damaged motherboards, or data loss. This safety feature became a hallmark of Apple’s user‑centric engineering, influencing later hardware designs across the industry. By integrating a permanent magnet and a simple five‑pin DC layout, MagSafe delivered reliable power while maintaining a sleek, low‑profile aesthetic. Although superseded by USB‑C for its universal compatibility and higher data rates, MagSafe’s legacy persists in Apple’s renewed magnetic charging ecosystem for iPhone and newer MacBook models, underscoring the lasting appeal of magnetic connectors for both safety and convenience.  

## Notable For  
- First Apple‑designed magnetic DC power connector, debuting in 2006.  
- Built‑in permanent magnet that prevents hardware damage from accidental cable yanks.  
- Unique five‑pin arrangement that includes a dedicated charge‑control pin.  
- Served as a transitional technology before Apple’s shift to USB‑C.  
- Distinct identity from Apple’s later MagSafe wireless charging system.  

## Body  

### History  
- Launched on 10 January 2006 as part of Apple’s proprietary hardware lineup.  
- Initially used on MacBook, MacBook Pro, and later MacBook Air models.  

### Design & Pinout  
- **Magnet:** Permanent magnet embedded in the connector head.  
- **Pins:**  
  1. GND  
  2. V+  
  3. Charge control pin  
  4. V+ (second positive line)  
  5. GND (second ground)  
- The magnetic alignment ensures a firm connection while allowing quick release under stress.  

### Compatibility & Usage  
- Classified as an external computer connector and DC power connector.  
- Compatible only with Apple devices that incorporated the MagSafe port; not interchangeable with standard DC plugs.  

### Transition & Replacement  
- Apple began phasing out MagSafe in favor of USB‑C connectors, which now serve as the primary power and data interface for newer Macs.  
- The “replaced_by” relationship is documented as USB‑C in official records.  

### Relation to Other Apple Technologies  
- **Parent class:** Proprietary hardware – Apple controls the interface specifications.  
- **Different from:** MagSafe wireless charger, a separate magnetically‑attached wireless power system introduced on 13 Oct 2020.  
- **Legacy:** The magnetic concept reappeared in Apple’s recent iPhone MagSafe accessories, highlighting the enduring value of the original design principle.

## References

1. Freebase Data Dumps. 2013
2. Quora