Apple MJ1M2AM/A

Apple USB-C to USB Adapter Instruction Manual

Model: MJ1M2AM/A

Introduction

The Apple USB-C to USB Adapter allows you to connect standard USB-A devices and accessories to your USB-C or Thunderbolt 3 (USB-C) enabled Mac, iPad, or iPhone. This adapter facilitates the use of existing USB-A peripherals with newer Apple devices.

Package Contents

  • Apple USB-C to USB Adapter

Setup

Follow these steps to set up your Apple USB-C to USB Adapter:

  1. Connect the USB-C End: Plug the USB-C connector of the adapter into an available USB-C or Thunderbolt 3 (USB-C) port on your compatible Mac, iPad, or iPhone.
  2. Connect Your USB-A Device: Insert your standard USB-A device (such as a flash drive, camera, or external hard drive) into the USB-A port on the adapter.
  3. Connect Lightning to USB Cable (Optional): To sync and charge an iPhone, iPad, or iPod, connect a Lightning to USB-A cable into the adapter's USB-A port, and then connect the Lightning end to your iOS device.
Close-up view of the USB-A port on the Apple USB-C to USB Adapter, showing the internal contacts.

Image: The USB-A port of the Apple USB-C to USB Adapter, ready for connecting a standard USB device.

Operating Instructions

Once connected, your Apple device should automatically recognize the adapter and the attached USB-A peripheral. No additional drivers or software are typically required for basic functionality.

  • Data Transfer: Use the adapter to transfer files between your Apple device and USB-A storage devices like flash drives or external hard drives.
  • Peripheral Connection: Connect USB-A keyboards, mice, printers, or other compatible peripherals to your Apple device.
  • Charging and Syncing: When used with a Lightning to USB-A cable, the adapter enables charging and data synchronization for compatible iPhone, iPad, and iPod models.

Maintenance

To ensure the longevity and proper function of your adapter, follow these maintenance guidelines:

  • Cleaning: Use a soft, dry, lint-free cloth to clean the adapter. Avoid using abrasive cleaners, solvents, or aerosol sprays.
  • Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures.
  • Handling: Avoid bending or twisting the cable excessively. Do not force connectors into ports.
  • Disassembly: Do not attempt to disassemble or modify the adapter, as this will void the warranty and may cause damage.

Troubleshooting

If you encounter issues with your adapter, consider the following:

  • Device Not Recognized: Ensure both the USB-C end of the adapter and the USB-A device are securely plugged into their respective ports. Try disconnecting and reconnecting.
  • Incompatible Device: Verify that your USB-A device is compatible with your Apple operating system and hardware.
  • External Drive Disconnection: Some external disk drives may un-mount or disconnect when the host Apple device enters sleep mode, as the adapter may cease providing power. For continuous power, consider using a self-powered USB hub or a Thunderbolt dock with its own power supply.
  • Tight USB-A Port: If the USB-A port feels tight initially, apply gentle, firm pressure to connect your device. The fit may ease with repeated use.
  • Test with Another Device: If possible, test the adapter with a different USB-A device or on another compatible Apple device to isolate the issue.

Specifications

Model NumberMJ1M2AM/A
ManufacturerApple
Product Dimensions2.6 x 0.67 x 6.1 inches
Item Weight1.12 ounces
Connector TypeUSB Type A, USB Type C
ColorWhite
Compatible DevicesiPhone 16, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16 Plus, iPhone 15, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 15 Plus, iPad Pro 13-inch (M4), iPad Pro 12.9-inch (1st, 2nd, 3rd, 4th, 5th, and 6th generation), iPad Pro 11-Inch (M4), iPad Pro 11-inch (1st, 2nd, 3rd, and 4th generation), iPad Air 13-Inch (M2), iPad Air 11-Inch (M2), iPad Air (4th, and 5th generation), iPad mini (6th generation), MacBook Air (2018 and later), MacBook Pro (2016 and later), MacBook (2015–2017), iMac (2017 and later), iMac Pro (2017), Mac mini (2018 and later), Mac Studio (2022 and later)
Specific UsesComputer, Tablet, Telephone
Date First AvailableNovember 1, 2018

Warranty and Support

For information regarding product warranty, technical support, and service options, please refer to the official Apple website or contact Apple customer support directly. Keep your proof of purchase for warranty claims.

Apple Support Website: support.apple.com

© 2026 Apple Inc. All rights reserved.

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