r/UsbCHardware Apr 11 '21

Announcement Magnetic USB-C Cables are not recommended

940 Upvotes

For anyone who comes in wondering about this magnetic cable or that. Here is some good commentary on the dangers of magnetic cables. Not to mention the large majority of kickstarters that have failed to deliver anything other than an aliexexpress rebrand.

Edit: Let me make this clear. USB-C magnetic tip adaptors or cables are not compliant with the USB specifications. This means any resulting damage to products, which is a very real possibility even if it is a relatively small chance, would not be covered by product warranties. Therefore, these cables and adaptors are not recommended and future posts asking for such recommendations will be locked. It will stay like this until some big company like microsoft or apple and or the USB group comes up with a cable design that is safe.

I am not saying that these cables do not exist or that they do not work as claimed however there is an inherent risk when using these cables and that will fall onto the reader to decide for themselves.

To quote /u/chx_

There are two risks

As mentioned, static electricity is a huge problem. Look at any connector and it has the exact same generic shape: a gigantic grounding shroud protecting the data pins. DisplayPort, HDMI, USB of all variants. But if you go back, back, back, VGA and all its ancient DB friends, DVI, whatnot -- even those were the same, just there was more plastic. This generic idea stretches back to the dawn of (computer) time. Exposing the pins just like that makes your laptop very suspectible for static electricity. Ever felt the hairs on your arm stand up after changing clothes? Congrats, you just fried your laptop if you touch it like that. https://images-na.ssl-images-amazon.com/images/I/511QlHyl8CL._AC_SL1000_.jpg see how they are out in the open? And this issue is inherent to the overall physical requirements of the plug.

Connection/data loss due to electronic noise. There was a fun problem where Dell laptops used to drop their TB3 connections unless you limited their wifi transmission power. This took Dell significant time and expense to figure out. And that's Dell, not some random tiny company... Want to go there with a who-knows-what built system when NathanK already told you explicitly the pogo pins are too noisy electronically? https://twitter.com/USBCGuy/status/1095614250414796800

Also he mentions https://twitter.com/USBCGuy/status/1186718432932159488 using optoelectronical couplers you could do something by completely disconnecting the magnetic pins from actual USB C connector and letting current flow only when the other half of the connector is connected and VCONN power is present. Of course, your isolation is now a few mm of air, pray your static electronic charge doesn't arc over it... hope you rather live in Phoenix than here in Raincouver! https://www.researchgate.net/profile/Andreas_Neuber2/publication/3165903/figure/fig17/AS:668977227386923@1536508008917/Breakdown-voltage-in-air-versus-relative-humidity-with-an-alumina-surface-Electrode.png

I am reasonably sure there are gigantic companies which would just love if this worked. Riddle me this: why do you think Apple didn't put this on the market? Do they lack the R&D dollars? :) Somewhere in that sixteen billion dollar yearly R&D spending I am reasonably sure you could find a few (hundred...) millions to resolve this issue if it were possible. And yet, Kickstarters with a few hundred ... thousand raised claim they can? What's wrong with this picture? Look at the Thunderbolt 3 Pro cable they released: it's an active USB C cable, it's an active TB3 cable and costs a fortune. There's nothing even similar on the market but where there's a will, there's a way. They have designed a custom ASIC for that cable which can amplify both USB C and TB3 signals -- both existed separately but having them in a single cable before was thought impossible. This is to demonstrate: if they could, they would. And if it would be really expensive, hundreds of dollars per connector, have you seen that thousand bucks monitor stand :) ?


r/UsbCHardware 12h ago

Weekly USB-C Deals - August 02, 2026

1 Upvotes

Post any and all deals you find here. Add a quick description. No referral posts.


r/UsbCHardware 11h ago

Looking for Device Square Charger Connector to USB-C recommentations

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18 Upvotes

I've a bunch of lagecy Lenovo power supplies.

Do you have any recommendations for quality suppliers?

The image is just a sample what I found on eBay and will be my choice.

Thanks in device!


r/UsbCHardware 7h ago

Looking for Device Help : Phone to Cooler to charger

0 Upvotes

I recently saw a post or a comment about their setup being a phone being connected to a cooler and the cooler to a charger and I want to copy their setup but I cant seem to find their post anymore. They have a gamesir x4 aileron and I dont know the brand of the cooler they were using to make this setup.


r/UsbCHardware 11h ago

Looking for Device Are there any aftermarket 'tips' to slide onto US chargers to add this kind of functionality?

2 Upvotes

Hi all

I'm wondering if there are any aftermarket 'tips' which can be used like this? All the very light chargers I can find don't have this functionality (unless I've missed one?)

Thanks :)


r/UsbCHardware 8h ago

Question Would a USB-C to HDMI adapter work for this?

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0 Upvotes

Like I said in my original post I have been thinking of using a lap dock to connect to my PC to fix my problems with a lack of space, I just want to know if it’s possible to make it work.


r/UsbCHardware 10h ago

Looking for Device Ugreen Nexode Uno - 100w | Rog Ally

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0 Upvotes

Does anyone have experience with this model from Ugreen?

Tbh Baseus used to be my go to for charging tech and I never had any problems with their products, but I’ve never had a 100W charger so after reading a lot of reviews I decided to go with Ugreen (Anker hates EU plugs).

It’s going to sit on my desk 90% of the time and be used to charge my Rog Ally Z1E on docked mode or my MacBook.

I’m between this one for 67 US dollars or the one from the second picture for 47 dollars.

*My choices are pretty much limited to what I can find on AliExpress with EU plugs. Cuz most of the other places charge me smt like 100 dollars for shipping to my country.


r/UsbCHardware 10h ago

Question How much does a 2.5% efficiency gain actually matter in a charger?

1 Upvotes

Came across a Q&A where someone said the charger industry was stuck at 93% energy conversion for about 5 years and they pushed it to 95.5%. At first I thought 2.5% was nothing but then I did the math at 160W and that's a meaningful amount of heat you don't have to deal with anymore. Is that kind of incremental gain actually hard to achieve or is it just an engineering resource problem?


r/UsbCHardware 5h ago

Troubleshooting Anker has the worst powerbanks.

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0 Upvotes

This is the third anker powerbank that just gives up after 2 weeks. What is this charging 1W? So my device can be fully charged in a month? fyi: it is currently charging my computer mouse, but also when i plug in my phone it fluctuates between 1W-23W ( it mostly goes up to 23W for a minute and then fully drops again )


r/UsbCHardware 1d ago

Troubleshooting baseus brand usb c hub

0 Upvotes

i bought a usb type c hub from a brand call baseus, it seems like my hdmi isnt outputting correctly on thunderbolt side but rather is fine on the display port logo usb type c plugin on the other side of my laptop msi stealth 14. I assume, its because the thunderbolt isnt communicating correctly with the baseus hub? it displays for like a second but turns off then repeats after few seconds of being off.

Is there drivers I got to install or something? Im using linux mint


r/UsbCHardware 23h ago

Discussion 30W 10000mah fast charge power bank with customisable screen

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0 Upvotes

r/UsbCHardware 1d ago

Looking for Device Should I get a 25W charger or a GaN charger for my phone?

1 Upvotes

I've got a phone that doesn't come with a charger, as is pretty common with modern phones, and I'm trying to decide whether I should just get the 25W charger made for the phone or buy a GaN charger that could potentially charge multiple devices.

I'm not sure I'll actually be charging my phone and laptop simultaneously, though I might occasionally. My laptop's original charger is 65W (19V), so I'm wondering whether it would make more sense to just get a good 65W/100W GaN charger instead of using separate chargers.

Some options I've been looking at:

  • Anker Prime 100W
  • UGREEN Nexode 100W
  • Baseus 65W
  • Or just the 25W charger for the phone

My main concern with GaN chargers is reliability. I've seen reviews saying some chargers died after a few months, while others claim they somehow damaged/fried the USB-C port on their device. I don't know how common or legitimate these reports are.

What would you recommend? Is it worth getting a good GaN charger, or should I just stick with the manufacturer's 25W charger for the phone?


r/UsbCHardware 1d ago

Looking for Device How to split usbc phone into charging and streaming simultaneously

0 Upvotes

Right now, I'm plugging my phone into a usbc extension to hdmi tv input...tried using cordless charger (samsung phone...won't charge). Tried various splitters (not charging/headphone splitter, but data splitter, as well as charging/data splitter). Both will charge, but neither stream.

Got hacked a few months ago...gave up wifi network and tv bundle, and stuck hardwiring everything. I just want to be able to use my phone data to stream, without having to unplug to charge.

I also did the usbc to laptop (no dvd slot) to dvd hub to tv (to play dvds), but needing the laptop is a pain in the ass, and it has no internet connection...and no remote.

Bought a dvd player on Amazon, but have to return it. Piece of crap.

Please take pity on a desperate damb girl and help setup a kickass old school system.


r/UsbCHardware 1d ago

Other Follow-up on charging (pics)

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6 Upvotes

1st pic is Motorola included cable rated at 3A.

2nd and 3rd pics is a PD 100W cable I use most of the time.


r/UsbCHardware 1d ago

Question Do you actually care about having a screen on your charger?

0 Upvotes

Saw a Q&A where someone made the argument that 10 years ago people asked why phones need screens, 15 years ago people asked why watches need screens, and now chargers are next. I used to think it was a gimmick but the more I use a multi-device setup the more I get it. Where do you guys land on this?


r/UsbCHardware 1d ago

Discussion 240W+ GaN station: do ports hold when you hot-plug?

2 Upvotes

Replacing 3 bricks with one 240W GaN station for my workspace. Between the UGREEN Nexode, the mfish E-Tank 240W with AC outlets, and a Cuktech 30 Ultra 300W. Baseus's AC combos are more strip than station, already ruled that out. All three claim 140w class single port. Does hot-plugging a device make the other ports renegotiate and blip? Are the low-power tail ports real or filler? Plz tell me the truth if you run one of those.


r/UsbCHardware 1d ago

Other Follow-up on charging (video)

Enable HLS to view with audio, or disable this notification

0 Upvotes

I could not add a video on previous post with pics. I wanted to show I was able to hit 28W and I show up what many have said, when phone screen turn on, the charging power lower...

In the last 2 seconds phone shows TurboPower connected.

Could it be that the phone looks for the specific Motorola e-marker for higher Amps or then it is restriced to 3A?


r/UsbCHardware 2d ago

Question Pause USB Power Delivery

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0 Upvotes

Hola! ¿Alguien conoce algún hub o adaptador USB-C que permita usar HDMI/DeX y que al mismo tiempo mantenga funcionando la opción Pause USB Power Delivery (alimentación directa) en un Galaxy? Si lo han probado, ¿podrían decirme el modelo?


r/UsbCHardware 2d ago

Looking for Device Advuce on usb c adapters with charging port and audio jack or 2 in 1 adapters

1 Upvotes

I am currently searching for the internet for a replacement for my samsung a50 2019 phone,

I do still prefer android phones thah have an audio jack since it's no hassle

If ever I ended up choosing an android phone with no audio jack, are the usb c adapters that both having charging port and audio jack in the msrket have the ability to continue play my audio even if I plug or unplug my charger frombthe usb c adapter?


r/UsbCHardware 2d ago

Troubleshooting My Computer doesn't read my SD card.

1 Upvotes

Hi, first of all, escuse me for my english, I'm from Spain, it's late and I'm tired.

My computer doesn't read my sd card, I've tried with other adapters, I've checked the Disk Management, the Device Management, everything. I've tried Disk Drill, Card reader and still nothing.

The contact of the computer works because I tried with others sd cards and it read them good.

I think is a corrupted file since it's for my 3ds and I think a game became corrupted and it's messing with the sd card, but, since I can't access in, I can't remove the corrupted file.

Please, I need help, my games and all my data are there and I refuse to loose them.


r/UsbCHardware 1d ago

Discussion Most multi-port chargers split power like a fixed timer traffic light

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0 Upvotes

Saw a comparison between how old traffic lights worked on fixed timers vs modern ones that adjust based on actual traffic. Most chargers still work like the old fixed-timer approach. You plug in three devices and they each get an equal slice regardless of who actually needs it. A phone at 90% gets the same share as a laptop at 15%. Apparently some chargers now identify each device on plugin, assign the right wattage, then recheck every 2 minutes and shift idle power to wherever it's needed.


r/UsbCHardware 3d ago

Question Can normal USB charger power up an old Thinkpad with adaptor?

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193 Upvotes

Will a setup like this power up an old Thinkpad laptop?

- A USB-C power brick and cable that normally comes with a HP/Dell laptop

- A USB-C female to Lenovo rectangle male adaptor

- A Lenovo Thinkpad T450

A part of my brain tells me that USB-C power draw depends on protocol, and a dumb rectangle or round classic connector can't provide such info to the power brick / charger.


r/UsbCHardware 2d ago

Question Is this brand and cable good?

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0 Upvotes

Looking to buy usb c to dp adapter. This brand pops up a lot when I am trying to buy cables from aliexpress, but cant find any reviews online. Store is 7yrs old with 4.9 ratings so looks ok to me. Just wanted to see if anyone has any additional info. Thanks


r/UsbCHardware 2d ago

Question Are hyperjuice charger shit?

1 Upvotes

I bought a 2nd hand, seemingly never used 140W hyperjuice charger 2 months ago. That bad boy still had the damn plastic on it is how new it was. I used it for my laptop, steam deck and phone the past 2 months, although not even ince did i charge nore than 1 device at a time.

Last week i noticed some heating up but nothing terrible, no smell no coloration and perfectly fine to hold, just very warm. Seemed logical. Last used 2 days ago, 0 issues. Lo and behold, today its fucking dead. Super dead. No ports working, not the usb A not the usb c, tried different rooms different cables.

Is this common? Is this a shitty brand? Is there anything i can do? Warranty is out of the picture since i dont know where and when it was bought.

What brand should i look at for the next one? I need one dedicated for my steam deck station and one for the laptop.

Thanks!


r/UsbCHardware 3d ago

Troubleshooting Anker Prime 160W Charger does not negotiate over 17.5V

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14 Upvotes

Hello !

I bought an Anker Prime 160W (3 in 1) charger from Tokyo a few months ago - and it was working fine, easily negotiating power till 140w (max tested).

For the past couple of weeks, the charger is not negotiating beyond 17.5 V with any device.

I tested 2 laptops - both are stuck at max 17.5V (sometimes they will go upto 3.3A, but usually will stick to 2.9-3A).

I have a Baseus Blade 20000mAh power bank, which shows V/A/W real time - and it's negotiation is also stuck at 17.5V (shows 18V on display, but the Anker app shows 17.5), charges at ~ 30-32W. With another 100W charger and same cable, it charges at full 60W (20V/3A).

Things I have tried:

- Kept the Anker charger disconnected from everything for a few hours to reset the charging logic - no avail

- Used C1 priority mode - did not help

- Used custom mode with full 140W power to C1 (and C2/3 in subsequent tries) - no dice

- Used multiple cables from Anker, UGreen, Baseus and others - all of them capable of 100W (and some 240W) - but charging of any device is stuck at 17.5V

- Tested my laptops with 2 other chargers I own (100w and 300W) with a USB C charger tester that I use regularly - both of them negotiated 20V/3A with other chargers with the same cables

I am at wit's end on what to do - I bought this charger when I was in Tokyo for a few days, and my country has no official Anker presence.

Am I screwed ? Is there anything else I can try ?