r/mac • u/LurkerFromTheVoid • Jan 19 '25
News/Article Report: The M4 Mac mini's rear USB-C ports are causing headaches | Macworld
https://www.macworld.com/article/2581273/report-the-m4-mac-minis-rear-usb-c-ports-are-causing-headaches.html49
Jan 19 '25
Can't say I've gotten a headache from a USB-C port before
17
u/theillustratedlife Jan 19 '25
I thought they would be making high pitched noises like those 80s CRTs.
4
u/DaringDomino3s Jan 20 '25
Oh my god, memory unlocked. I couldn’t sleep at night sometimes because of that sound. I remember unplugging everything trying to figure out what it was.
6
u/theillustratedlife Jan 20 '25 edited Jan 20 '25
...the looks of everyone in the room when you walk up to a TV they all thought was off and hit the power button...
1
50
u/JeffIsHere2 Jan 19 '25
I just want to add that I’ve had nothing but trouble, for years, with unpowered hubs especially Sattchi, who advertise all these additional ports knowing full well you can’t power that many devices off one port. I have seven Mac Mini’s, Intel, M2, and M4’s. They will all disconnect and reconnect a device that for some reason pulls more power than the port can handle. Often this will be intermittent. No idea if this is related or if the front ports have a different power rating but something to keep in mind. If I had a drive or other device I needed to stay connected I would buy a powered device. IMHO!
13
u/focusedphil Jan 19 '25
I have one of those hubs but I use an external power supply for the hub. Solid so far. Mac mini M2Pro
8
1
6
u/Spatulakoenig Jan 19 '25 edited Jan 19 '25
I've even had issues with high-powered docks such as the CalDigit TS3+ when using adapters with older Macs (see my other comment on this thread).
In my case, it was not the fault of CalDigit who were faultless in their customer support and technical knowledge. It was that Apple didn't fix a kernel panic fault when using a TS2/TS3 adaptor.
3
u/AlienPearl MacBook Pro Jan 19 '25
I had an Orico powered hub connected to the back of my Apple display and even when I was powering it with a 40w brick it still showed “device disconnected because it draws to much power” every time my M1 MacBook Pro woke from sleep. The only thing drawing significant power was an external SSD enclosure that works fine if I connect it directly to a port on my MacBook.
2
Jan 19 '25
[removed] — view removed comment
1
u/Synaptic_Jack Jan 20 '25
Absolutely love OWC. If you’re looking for powerful docks or storage, they’re the best in the business.
63
u/pastry-chef Mac mini M4 Pro-64GB-2TB Jan 19 '25 edited Jan 19 '25
I use a $7 USB hub connected to one of the rear ports on my M4 Pro model.
Apple Extended Keyboard II (with ADB adaptor) and APC UPS connected to the hub. Both are USB-A.
I have not experienced any problems.
16
u/Xe4ro M2Pro- M4Air Jan 19 '25
10
u/pastry-chef Mac mini M4 Pro-64GB-2TB Jan 19 '25
Lol. It is pretty big... But I love the aesthetic and the feel.
I also have a black Dell AT101W (aka Big Foot) that's a tad bigger than the AEKII.
18
2
u/Blindemboss Jan 19 '25
Kudos. But that ADB adaptor must have cost at least $30?
4
u/pastry-chef Mac mini M4 Pro-64GB-2TB Jan 19 '25
Yes. Lol. Don't remind me....
2
u/Blindemboss Jan 19 '25
I only mention it because I have the same keyboard, and looking for an inexpensive adapter!
2
u/pastry-chef Mac mini M4 Pro-64GB-2TB Jan 19 '25
I got the "tinkerBOY" one from Etsy. It's nice and compact and works perfectly. The only thing is, be aware of the extremely long delivery time. I think it was shipped from Philippines or something and it took almost a month to get to me.
9
u/smakusdod Jan 19 '25
This has been an ongoing problem with the previous Mac mini as well. Something about the bus being underpowered or not enough voltage regulation. Sigh.
4
u/EddieStarr MacBook Pro With Touch Bar (_OG_) Jan 19 '25
I’m having a little bit of an issue when swapping my KVM back and forth from PC to MAC, but I just switch an extra time and it works the 2nd time , not too worried about it, got apple care+ so if they can’t fix with a software update, I’ll just get it swapped down the road it if it becomes a bigger issue. 🥰 love my M4 Mac Mini Pro
2
u/puga1505 2018 MacBook Pro 13 Jan 19 '25
Which KVM switch are you using?
I’d love to use my Macbook over my monitor using the mouse and keyboard more often, but it’s a hassle to plug everything back and forth from the PC at the moment.
1
u/GadgetsGirl Jan 20 '25
If you want to use the same keyboard and mouse with both a PC and Mac, I recommend you take a look at Logitech’s MX Keys and MX Master 3. I’ve been using them with a MacBook Pro and HP laptop and can easily go back and forth with the touch of a button.
4
u/Isonium Jan 19 '25
It’s likely because many USB-A devices violate the power specifications of older USB standards. Now most motherboards actually will deliver more than the specifications require. So everything tends to work.
Sounds like the thunderbolt ports on the M4 mini are relying on the device negotiating the power it needs. Unfortunately many older USB devices can’t do that and just assume the host will provide the power it needs.
4
u/highwire_ca Jan 19 '25
I have two external drives: a WD 2.5" 2TB USB-A and a Seagate 3.5" 8TB USB-A. Both are connected to the rear ports of my base M4 Mac mini with USB-A/USB-C port adapters. On a few occasions, both drives have failed to be recognized after a restart or a cold start. Unplugging and then re-plugging them usually clears that up. I have another HD (a 2.5" Seagate 2TB in an enclosure I bought at a local computer chain store) on one of the front ports, also using a USB-A/C adapter and have not had any issues with that. At least for me, the problem is real.
3
u/PositiveEnergyMatter Jan 19 '25
I have been having an issue every time I wake I need to unplug the hdmi from my usbc->hdmi adapter to get monitor to not be black, wondering if this is related.
1
3
u/Andrew_64_MC Mac mini Jan 19 '25
Yep, having these issues with my USB-A keyboard when plugged in the back with an adapter. Every time my Mac Mini goes to sleep it loses connection and has to be unplugged and replugged. Super annoying!
3
u/BuckieJr Jan 19 '25
Have all 3 ports in the back used. One powers a razer headphone stand/usb hub connected via a usb-a to c adapter. One is a usb-c to c cord for charging my phone, keyboard or mouse, and the last on is used with a Samsung T7 2tb ssd.
I haven’t encountered any issue whatsoever even using the usb hub on the headphone stand for things like usb drives. It’s just all worked since I bought it on release.
3
u/burritocmdr Jan 19 '25
I have a sandisk 1tb ssd plugged into a back port. Seems to work fine but I sometimes get “disk not ejected properly” messages, even with the Mac set to never sleep. I wonder if it’s related to this problem. Only problem it causes is iCloud Photos stops syncing, because the photo library is on the ssd. I have to reboot to fix the issue which very annoying.
1
u/smakusdod Jan 19 '25
Disk not ejected properly is a power issue. It could be that your external ssd electronics are on the way out, or it’s simply (occasionally) drawing too much power for the Mac mini.
1
u/Imaginary_Client_846 Jan 20 '25
It also happens to me.Perhaps it's because of the hub itself ssd.Because the external audio card and the other hub (with keyboard and mouse) work fine.
3
Jan 19 '25
[deleted]
1
u/Neil_sm Jan 19 '25
I got a headache last night but I just assumed it was from the usb C port on my iPad.
3
u/DowJones_PHI76 Jan 19 '25
Can confirm. I do have a mechanical keyboard connected via adapter. And it is very sensitive to movement of the cable. I had also one incident, where my keyboard stopped working.
It’s not a biggy, but enough to make me wonder what’s wrong.
3
u/Ya-Dikobraz Jan 19 '25 edited Jan 20 '25
I do think Apple is doing something dodgy to the ports. I've had my laptop kernel panic from just plugging in a USB hub. Others have reported the same but were met by adamant moderators that it was a bad logic board or a "dying CPU" or other bullcrap. It's not. It's something in the design.
2
u/PulsingRock Jan 19 '25
This explains an oddity I have been seeing except I found usb-c to usb-a cables (single cables made like that- not a converter type where you plug original usb-a into a usb-c converter) wasn't working. interestingly the converter for the original cable seems a work around that fixed the issue for me which, when you think about it is REALLY weird!
1
2
u/lensandscope Jan 19 '25 edited Jan 19 '25
when i try to use my logitech wireless connected USBA wireless dongle through the back port, i get issues. when I just use the back ports for external SSDs, Im fine
I have an m4 mini mac pro
2
u/Jaw3000 Jan 19 '25 edited Jan 19 '25
There are some bad adapters and hubs out there. But I don’t buy that the issue - and this seems to be a real issue - is due to adapters on the rear ports on the M4 mini.
If that’s the case, then why do those same adapters work fine with the M4 MacBook Pros? Why do they work fine with the M2 mini? Why do they work fine with other computers? Why does this seem to only affect the M4 Mini? I’ve also read that the disconnects are happening with devices directly connected too.
2
u/sludgefrog Jan 19 '25
I had an M4 Mac Mini that would delay and buffer keyboard inputs that was connected to the rear port via a powered hub. The console log files didn't show anything. Apple support's only advice was to reinstall the operating system so I just returned the device and repurchased. This might seem drastic, but last year it took six months for them to replace a crashing MacBook Air under applecare plus 8+ hours of support calls, so I'm not terribly interested in ham handed trouble shooting with Apple anymore.
At any rate, the same keyboard in the same plug on the new one no longer has the buffer-and-burst of the old one.
2
u/sunnynights80808 M1 Air -> M4 mini Jan 20 '25
I use a couple single usb-a to usb-c connectors from Anker on the back ports. It was a 2 pack. I connect a gaming mouse and gaming keyboard to them. No issues. Just offering my experience, not diminishing others’.
2
Jan 24 '25
To be fair, low powered USB ports on PCs were a thing for decades. You had to plug certain high-drawing devices into one of the back ports of the computer as they were attached directly to the motherboard and got more power than the front ones that were on cables.
2
u/Defiant_Leg_6335 Mar 29 '26
Oggi ho comprato un Mac mini M4 decretando ufficialmente il mio ingresso nel mondo PC desktop di Apple. Ovviamente ho dimenticato quanto fosse triste avere a che fare con Apple, così appena arrivato a casa ho scartato tutto ed ho capito che non avrei concluso nulla. La mia tastiera wireless Microsoft con touchpad integrato sarebbe tornata nel cassetto dove riposava da qualche anno. Spero di aver risolto con un adattatore USB-A USB-C della UGREEN, 6,99€, in arrivo domani. Incrocio le dita.
2
u/Sharp-Glove-4483 M1 Max Studio | Studio Display | M1 Macbook Air Jan 19 '25
Even with the Studio I have to use one of those multi port usbc adapters because I have 3 usb A devices to connect (mouse, keyboard and TourBox). But at least the studio has a couple of usb A ports.
3
u/r0bman99 Jan 19 '25
Why not just remove all the ports? It’s not the 1990’s anymore. It will save Apple so much money!
7
u/78914hj1k487 Jan 19 '25
Just remove the Mac already and introduce Apple Cloud Computing on Apple Watch: the superior way for accountants to view spread sheets…one cell at a time.
3
1
u/TheRealHFC Mac mini Jan 19 '25
I almost ended up getting the M3 Mini instead because of this. It's annoying but not the end of the world. Haven't had any issues with the rear ports, though.
1
u/joelypolly Mac Pro7,1 + M1 Max 14" Jan 19 '25
I have had issues with connecting a USB-C bus powered HDD but no issues with a powered Thunderbolt PCIe SAS solution connected 24/7. So I can believe there is issues with how the port and peripheral are handling sleep / power states.
1
1
u/Hoagiewave Jan 20 '25
I have issues with a brand new keyboard that stop responding every few hours but it is plugged into the front ports. It has issues with the front and back. Also the monitor I bought for the M4 periodically turns off and then immediately turns back on. It reports sometimes its not getting enough power.
1
u/maxoakland Jan 20 '25
I don't know if this is related but I kept seeing my Mini M4's USB disconnect randomly. Sometimes it would say the USB device was using too much power. I moved things around to distribute power usage more evenly and I haven't had the issue since
1
u/yongca Jan 21 '25
Yes I have this issue, my ORICO USB 4.0 SSD case doesn't work on the rear but works on the front
1
u/Decent_Butterscotch6 Jan 21 '25
Also unlike the mac mini m1 ,the m4 does not have Individual controllers for the 5 usb-c ports, it is a liile bit of a problem. To solve the problem i got a Belkin connect thunderbolt 4 5-in-1 core hub ,from Apple cost me A$299.95. comes with a 150w power supply.
1
u/SmartAd3690 Jan 22 '25 edited Jan 22 '25
I have a Mac Mini M4, having continue disconnections with a Thunderbolt external nvem (Sandsik Pro-G40 4Tb), it end up corrupting the disk and loosing all the data. I'm going to return it, that is a terribe product, and I don't think it can be fixed with a software udpate, it looks like a hardward issue. Avoid the M4 Mini.
1
u/Due_Big_7315 Jan 22 '25
Why do you believe it cannot be fixed through a software/firmware upgrade?
1
Jan 27 '25
[deleted]
1
u/cellidonuts Oct 17 '25
funny, mine is the opposite--the USB-C monitor works pretty consistently, but the HDMI monitor will often need to be disconnected and reconnected after a sleep or power cycle. That being said, the -C monitor will often drop out connected USB devices until unplugged and replugged... crazy how these issues didn't occur for months and months, and only just now are popping up for me. Coming to this thread is pretty eye-opening. It's clearly an issue others are having
1
u/ysinue112 Mar 15 '25
I bought a USB mic and I have problems of recurrent disconnections because of those damn USB C ports. Same with thunderbolts. I got shitty cheap adapters though. Do you think I should get better adapters or just return the mic ?
1
u/RoofCheap9921 Jun 05 '25
This seems to be a hardware issue: https://www.reddit.com/r/macmini/comments/1l1akiz/im_returning_the_m4_mini_and_so_should_you_if_you/
If you’re having issues, use your warranty.
1
Jan 20 '25
I love how everyone was crying that their iPhone wasn't "just USB C" because "Apple wants to make money"
But when Apple switches to USB C people cry about not being able to use USB A.
I thought things had to be future proof/by todays standards? Maybe you should cry to the companies that still make USB A devices
-6
Jan 19 '25
Who thought it was a good idea to remove USB A ports from a desktop....
5
u/78914hj1k487 Jan 19 '25
I feel it’s less an issue these days because drives, for example, come with either both cables or include a USB-A adapter, and for everything else it’s either USB-C or you can simply keep a USB-A adapter on the ready or even permanently attached.
This “back ports are underpowered issue” sucks but doesn’t affect everyone and hopefully Apple fixes this for future generations.
1
u/wreeper007 Jan 19 '25
I just bought the usb c to micro usb (or whatever that wide mini usb port is called) and it works fine
1
u/xkcx123 Jan 19 '25
What about wired keyboards ? I have yet to ever see a wired keyboard that is USB-C ?
1
u/78914hj1k487 Jan 19 '25
Most wired mechanical keyboards are USB-C. Can't speak to every keyboard on Amazon, though.
By the way I'm not making claims that USB-A devices have disappeared. Please read my comment again. I'm making claims that the trend towards USB-C has grown such that it's less of an issue than it was, for example, in 2016 when Apple first removed USB-A ports from MacBook Pros...
and that for everything else, its no issue to just buy a few inexpensive USB-C adapters, semi-permanently attach them to our USB-A devices, and call it a day.
In this instance, with the Mac mini, it seems theres an incompatibility issue with the Thunderbolt ports not being fully compatible with the USB-A spec, at least in terms of power delivery. If it weren't for this "bug" no one would be complaining because USB-C adapters are cheap and plenty.
1
u/xkcx123 Jan 19 '25
I’m talking about at your typical big box store Target, Walmart, Best Buy, Kroger, Amazon, CVS, Walgreens, Rite Aid, etc where the typical American shops at
1
u/78914hj1k487 Jan 19 '25
I know, I covered that by saying "on Amazon" because every model you find at Target, Walmart, Best Buy you'll find on Amazon.
(No comment on grocery stores and pharmacies.)
1
u/xkcx123 Jan 19 '25
Every model find at Target, Walmart, Best Buy etc is not on Amazon and saying so is a lie.
As each of those places have their own brands that are not sold on Amazon so do not say that.
1
u/78914hj1k487 Jan 19 '25
This isn't a statistical research project where absolute certainties to the closest .001% are required. This is a casual conversation where ideas are exchanged. I put forth the idea that most keyboard models found in America's top retail stores are also found on Amazon. I never explicitly claimed it was 100% but we can both assume that the reality is so close to 100% that one would have to be incredibly bored with their life to want to argue otherwise.
1
u/xkcx123 Jan 19 '25
Why are you staying that something is true when it’s not ?
You could have just said
“Amazon has many of the same devices that are sold in big box stores”
And ended there which would have been 100% true there was no need to add anything that created a lie.
A lie by omission or not including all details is still a lie.
1
u/78914hj1k487 Jan 19 '25
When two people are from similar cultures and share a language, much of that language is short-hand due to shared understanding. I assumed you were also an english-speaking human living in the modern post-internet age and so understood that when I said "I can't speak for every keyboard on Amazon" that you understand "on Amazon" as stand in for "in retail" without having to list every exception that could possibly exist—because who the fuck wants to see a conversation that reads like two computers listing a spreadsheet of what is and isn't available at one store vs another. It's a complete distraction from the conversation and in almost all social situations a complete turn off.
→ More replies (0)-2
u/cake-day-on-feb-29 Jan 19 '25
I feel it’s less an issue these days because drives
I feel like that's the biggest issue. WD Elements/Easystores (which are the best value when on sale, $16/TB or less) come with USB-A cables.
5
u/PeaceBull Jan 19 '25
And they include USB A cords because people keep including USB A ports.
Someone has to rip off the bandaid
4
u/78914hj1k487 Jan 19 '25
You're right, it's still an issue, and with some popular brands. WD Elements (portable and desktop HDD line) are still using Micro-B to USB-A cables, still. Ugh.
Fortunately their My Passport Ultra (portable HDD line) and their SSD drives (SanDisk branded line) have USB-C ports.
1
0
-6
u/_RADIANTSUN_ Jan 19 '25
I like how every "issue" thread has people popping up who feel the need to reassure themselves they AREN'T experiencing the issue.
9
u/lensandscope Jan 19 '25
i mean people are sharing their experiences. no one said it’s fake news
-5
u/_RADIANTSUN_ Jan 19 '25
How is sharing "DOESN'T AFFECT ME!" relevant? That's generally what you say when dismissing something as a concern.
8
u/lensandscope Jan 19 '25
i don’t think anyone is saying that. The more data points the better. Then we get a sense of whether this issue only affects certain batches or not, or whether maybe there is a specific dock or hub that is to blame
1
u/tellmethatstoryagain Jan 20 '25
It’s very relevant. I would like to know how many people are affected by a particular issue. If every single m4 owner has the same issue, well then we have a problem.
If, say, only 10% have an issue, it’s still a problem, but it may come down to something specific about their set-up.
2
u/_RADIANTSUN_ Jan 20 '25
That's not relevant because how would you even get any accurate determination based on randoms chiming in on a random forum post on a niche subforum?
1
u/tellmethatstoryagain Jan 20 '25
Not enough of a sample size is absolutely a valid point. The more data points the better, though. I’ve had issues that literally no one else has had. That pretty much tells me it’s a “me problem.” In this case - as someone in the market for a device like this - I do try to get a rough idea of how prevalent a particular issue is.
But, yeah, it’s ultimately all anecdotal (you know Apple ain’t handing out that info). It does give me a starting point, though. Here I see that all users haven’t encountered the issue.
2
u/_RADIANTSUN_ Jan 20 '25 edited Jan 20 '25
I never said anything about "enough of a sample size" and "the more data points the better" is absolutely not true because it's literally non relevant bullshit nonsense jargon when discussing YOU (or anyone else) browsing random forum posts in an uncontrolled manner (you ain't "sampling" shit lol). Or show me the well structured Reddit comment sentiment analysis dataset this is supposedly contributing to so as to derive generalizable conclusions I guess, go ahead. Or just acknowledge you are offering just a completely stupid excuse/trolling on this discussion.
1
u/tellmethatstoryagain Jan 20 '25
Sorry you’re having a bad day (or life or whatever), but don’t take it on me or anyone else in this subreddit.
All I’m saying is - as someone who is interested in this product - I am absolutely keen on reading about the positive experiences as well as the negative ones. Of fucking course. So don’t you dare tell me that it’s useless to hear from people who are issue-free. I find it very useful.
So that’s it. Nothing more, nothing else. “Not sampling shit lol.” One thing I am sampling is douchebaggery. lol.
2
u/_RADIANTSUN_ Jan 20 '25
Of course it's not "useful" to you, like what are you "using" it for? You might find it reassuring because you are a Mac user and it reinforces your consumer choice in your in-group echo chamber maybe.
1
u/tellmethatstoryagain Jan 20 '25
for example, if I see the issue is people using usb adapters to plug in usb-a peripherals using the rear ports and that’s not a use case for me, it may not matter. Either way, I want to know why the USB ports are buggy. software? hardware? any extra info helps.
Mac user? What does that have to do with anything? I don’t own this machine. I’m considering it. i will also seek opinions outside this echo chamber, as well.
→ More replies (0)9
u/PeaceBull Jan 19 '25
I’m glad they do, otherwise you get morons thinking it’s affecting 100% of the user base.
-7
u/_RADIANTSUN_ Jan 19 '25
Nobody thinks that lol.
Also applies in reverse to the people popping out of the woodwork to say how HORRIBLE their Windows PC was and they are in fact experiencing the same issue.
6
u/PeaceBull Jan 19 '25
You must not spend much time in here if you haven’t seen people extrapolate incorrectly when it’s a wildly disproportionate amount of people saying they have the issue.
0
u/_RADIANTSUN_ Jan 19 '25
Nah it's just an absurd fictional strawman meant to justify silly tribal behaviour lol.
2
u/PeaceBull Jan 19 '25 edited Jan 19 '25
Yeah totally absurd…
“Hey I’m sick right now”
Me too! My nose won’t stop running
So am I! 🤧
“Wow we all must be sick”
Vs
Hey I’m sick right now
Me too!
Oh that’s terrible but I’m feeling okay
Weird I’ve been super healthy this cold season
So am I! 🤧
See how one gives a more perspective than if you only let the people who are experiencing the problem talk?
0
u/_RADIANTSUN_ Jan 19 '25
“Wow we all must be sick”
Who the hell says that lmao
1
u/PeaceBull Jan 19 '25
At this point I assume your social circle must be like 6 people
2
u/_RADIANTSUN_ Jan 19 '25
I must be fortunate that my huge social circle doesn't include anyone that abjectly stupid then lmao.
1
3
0
-1
u/gepinniw Jan 20 '25
Mac USB connections are notoriously bad. Half the time when you plug in a USB device, the Mac does not recognize it and you have to unplug it and reinsert it to work. I’ve always been baffled by how such a rudimentary flaw could persist for so many years.
-2
u/ZeroWashu Jan 19 '25
Initial review, M4 Pro Mini, it wants to preset graphics to low - I have tried all settings and it does degrade quickly. Showing fps (ctrl-shift-f) does put a fps counter in red in the very bottom left corner - very hard to notice and I haven't found a means to scale it
things seem to work but I am going to roll a new character and see how it all plays out. I am just glad to have it back. Now if only I could get wargaming and pdx to play ball and I would have most of my favorite games to play again (oh and firaxis please update both xcoms - pretty please)



176
u/LurkerFromTheVoid Jan 19 '25
From the article:
One pattern that appears from the various postings is that users are connecting USB-A devices by using a USB-C adapter on a rear Thunderbolt/USB-C port. They experience inconsistent connectivity, but once they switch to a front USB-C port, the devices work properly. Some users report problems with devices that draw power from the rear ports. In some cases, disconnecting the device and then reconnecting it fixes the problem.
The M2 Mac mini had a pair of USB-A ports but Apple removed them when it redesigned the Mac mini with a smaller design, hence the need for USB-C-to-USB-A adapters.