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1. #Best usb hub for macbook retina mid 2012 how to#
2. #Best usb hub for macbook retina mid 2012 pro#
3. #Best usb hub for macbook retina mid 2012 mac#

#Best usb hub for macbook retina mid 2012 mac#

Here is how you can perform the NVRAM reset on a Mac to see if this resolves the USB failure: Sometimes resetting the NVRAM / PRAM on a Mac can help resolve the USB port failure as well, since NVRAM holds various data about keyboards, mouse, trackpad, and other USB components. Another Fix for USB Not Working: the NVRAM Reset The USB ports on the MacBook should now work just fine, which you can confirm by connecting the USB device as usual and checking to be sure that it works – if it’s still not working, try another USB port, and try another USB device.

#Best usb hub for macbook retina mid 2012 pro#

Hold down Shift+Control+Option+Power concurrently for a few seconds, when the light on the power adapter blinks or changes colors you’ll know SMC reset is complete.Shut down the Mac and connect the power cable.For those with a MacBook, MacBook Pro, and MacBook Air, all you need to do is this:

#Best usb hub for macbook retina mid 2012 how to#

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. In addition to being $20 less than Apple’s 61W option and $30 less than the 87W charger, you also get another 12W of output from two standard USB ports with this $50 Aukey charger ($38 through this weekend).First and foremost, keep in mind that sometimes a USB device itself can fail, which may have nothing to do with the Mac itself. Conclusionįor 12-inch MacBook or 13-inch MacBook Pro users, I think Aukey’s 60W USB-C charger & dual port USB is a great alternative to Apple’s charger, whether that’s as a replacement or as a backup option. For 15-inch MacBook Pro owners, if you’re not a power-user, it’s also likely a solid choice. For those regularly working with 4K video, doing 3D modeling and rendering, crunching big data sets, or other similar intense tasks, the 87W charger should offer greater output with the 15-inch MacBook Pro models than shown in my testing, and be the best fit. I’m by no means a power user, but my MacBook still handles a decent workload. Variables and considerationsĪs with results from tests like this go, your mileage may vary. But of course, after an hour and a half the 87W charger offered 4% more battery, meaning the average output was a bit higher than the 60W charger, but was still lower than I expected.īoth the 60W and 87W chargers were outputting around 40W of juice after 90 minutes. The Aukey 60W charger put out around the same 57W, for the most part keeping up with the 87W power adapter. Of course this number isn’t static, but it was interesting to see my 15-inch MacBook Pro requesting less than 60W while in use. In my testing, Apple’s 87W charger put out around 57W. When plugging in with battery at 10% here’s a look at the power output of the two chargers:

After an hour and a half, the 87W charger added 76% battery while the 60W charger added 72%. The results below are the average of two tests for both the Aukey 60W charger and Apple 87W charger.Īs you can see, the 87W charger filled up my 15-inch MacBook Pro battery more quickly than the 60W charger, but not by very much. As shown below, in my testing, even the 87W Apple charger and original Apple USB-C cable didn’t output over 60W. This power meter is limited to measuring up to 65W, but it was only used to spot check output. I used Satechi’s USB-C Power Meter to measure output and started the clock with the battery at 10% for all tests. That includes eleven open apps, Safari with 4-6 tabs open at a time, TweetDeck with streaming on, and brightness set to 75%. Because charging times aren’t as important when you’re not using your MacBook, all tests were done during normal work days here at 9to5Mac on my 2016 15-inch MacBook Pro running macOS High Sierra.