You can learn how to reset the SMC on all Macs here in our detailed tutorial. So, you’re confident a USB port is the problem and not the device itself? The first thing you should do is reset the Mac SMC, a simple process which is slightly different depending on the Mac hardware.

The Solution to No-Cause Random USB Failure on a Mac: Resetting SMC And yes, this can apply to any and all Macs, whether a MacBook Pro, MacBook Air, MacBook, iMac, Mac Mini, or Mac Pro. If multiple USB devices are not working on a particular port, or all ports, then it’s obviously less likely to be a device issue, and more likely to be related to the Mac itself. The easiest way to determine if the USB device itself is the problem versus the Mac USB port, is to try and use at least two different USB devices and switch their ports. This is particularly true with cheap low quality USB devices and cables. So, whether you are working on a project or enjoying your favorite TV shows, this power adapter ensures that you stay connected and charged all day long.First and foremost, keep in mind that sometimes a USB device itself can fail, which may have nothing to do with the Mac itself. Overall, the Apple 45W MagSafe Power Adapter is a reliable and efficient accessory that provides the necessary power to your MacBook, while ensuring your device remains protected and safe. It also includes a long, tangle-free cord that gives you plenty of reach and flexibility when you need it. This product is designed with an advanced magnetic connector that allows for a quick and secure connection whilst also helping to prevent the fraying or weakening of cables over time, thus prolonging the lifespan of your device.įeaturing a compact and lightweight design that makes it easy to carry and store, making it perfect for travel. Designed with the latest technology, this power adapter is built to deliver a high level of performance, reliability, and convenience. The Apple 45W MagSafe Power Adapter is a must-have accessory for anyone who uses a MacBook Air or MacBook Pro.

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