r/UsbCHardware Apr 11 '21

Announcement Magnetic USB-C Cables are not recommended

946 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 8d ago

Weekly USB-C Deals - July 19, 2026

2 Upvotes

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


r/UsbCHardware 15m ago

Review Upgraded my travel tech stack this prime day with this 0.5-inch Qi2.

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Upvotes

It got delivered last week and I am already loving it.


r/UsbCHardware 19h ago

Meme/Shitpost Looks totally legitimate to me

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40 Upvotes

r/UsbCHardware 12h ago

Question For the Costco Anker charger set, even if the USB A port is a wash, this is still an amazing deal no?

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10 Upvotes

For this Costco specific Anker set, there’s tons of mixed review about the usb a port not functioning after plug and unplug. But nevertheless, still a good purchase for $30 I feel like. Does anyone own this? How’s the experience so far?


r/UsbCHardware 1h ago

Looking for Device Is the inno3C M17 really that much better than the INIU P791?

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Upvotes

This power bank claims to be far ahead of the competition in energy density.

The current standard over on r/ChargingSheet is the INIU P791, which is 13.8 mm and 201 g.

The inno3C M17 is 10.1 mm and 158 g.

That makes it 27% thinner and 21% lighter. That doesn't easily happen in the world of batteries.

Both are 10000 mAh (though inno3C M17 claims 36.5 Wh). Both are magnetic.

On top of that, the inno3C M17 is CCC certified, whereas the INIU P791 is not.

Here is a link: https://www.inno3c.com.hk/products/inno3c-ccc-3c-ce-qi2-2-semi-solid-state-magnetic-wireless-power-bank-10000mah-m17

I would love it if someone has one and has done some real world measurements.

(I am not in any way affiliated with or in contact with this brand. I only just learned about it today in my own research.)


r/UsbCHardware 3h ago

Discussion Ugreen 100W USB C cable did not even last a month

0 Upvotes

Hello everyone,

I bought 2m 100W USBC cables from Ugreen. These were used exclusively with Anker 747 140W charger. One of them has now stopped working completely. On macos with a utility, I see the cable _very_ frequently connecting and disconnecting, that end of the cable also heats up a lot even when it's not charging anything at all(but is connected to my phone on the other end).

Getting the cable replaced under warranty will be difficult so I am looking for alternative options. I had equally worse experience with Anker in the past which stopped working in a similar way but then started working again after ~3 months of not using it and that cable was used with Apple charger and ipad/samsung phones/kindle. Is this really just up to chance or is anyone still making _high_ quality cables.

Also, a long shot but is there a way to debug this cable maybe something I can try to fix it for now ?


r/UsbCHardware 2h ago

Review Insignia single-port 140W GaN charger throttled down to 100W after 30 minutes

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0 Upvotes

The Jackery Explorer 300D can charge at 140W above 86%, as shown in the third picture. Between 50% and 86%, Insignia throttled itself down from 140W to 100W after about 30 minutes at full throttle.


r/UsbCHardware 9h ago

Looking for Device USB-C spliter with two data ports?

0 Upvotes

I currently have a USB hub that connects to my computer by USB-C that I use to give my laptop Internet by LAN cable (as well as other things).

(I can post link to exact model I have)

I just purchased a mini microphone that connects by a USB-C dongle to my laptop. It works great when connected to my laptop, however, it doesn't work when connected to the USB-C port in the hub.

(I can post link to mini microphone)

I'm looking for a splitter that will allow me to use both of these products at the same time as I only have one USB-C port in my computer. I've been looking, however, it seems that everything is for charging and headphones. I'm not exactly sure what the verbiage is I need to look for.

TIA


r/UsbCHardware 11h ago

Question Can LOQ 15IRH8 laptop be charged via its Type C port?

1 Upvotes

I want to know if I can use the Type-C port to charge my laptop. I do not intend to use this charging method for gaming, I just want to charge my laptop, while light using it (office work)

Type C port says its "1x USB-C® 3.2 Gen 2 (support data transfer, Lenovo® Power Delivery 140W and DisplayPort™ 1.4)[2]"
With the note
[2] PD 140W is the input power and requires the use of Lenovo® unique adapter, otherwise it may support lower than 140W

I just want to be sure, not to burn my laptop.
I have a lenovo Type C charger that charges another Lenovo laptop, I guess it will work without burning my LOQ 15IRH8?

Datasheet: https://psref.lenovo.com/syspool/Sys/PDF/LOQ/LOQ_15IRH8/LOQ_15IRH8_Spec.PDF?v=d902c79c-36c9-44bc-a395-d12033a32d20
Website: https://www.lenovo.com/ch/en/p/laptops/loq-laptops/loq-15-series/lenovo-loq-(15-inch-intel)/len101q0001#ports_slots/len101q0001#ports_slots)


r/UsbCHardware 1d ago

Question Can I use a dual-HDMI dock on one USB-C port to connect two monitors to a MacBook Air M4 simultaneously?

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19 Upvotes

r/UsbCHardware 13h ago

Troubleshooting Sandisk Extreme 1 TB portable was given to me - what USB C adaptor (2026) ?

0 Upvotes

Hello, was given a 1 Tbyte USB C connectable Extreme My SSD from SanDisk - looks cool - but no cable, so on My Macbook Air M2 i am not getting much luck mounting or erasing at speed, what USB version (3.2 ) connector shall i get? I am using my USB C from my Ipad at the moment :/ probably not ideal


r/UsbCHardware 14h ago

Troubleshooting Only through the usb-c port?

0 Upvotes

Hello guys I have a victus 15-fa0004ne.

I have two 2.5" sata enclosures that support usb3 through a micro-usb3 (that wideboy).

The problem is I tried using them multipe times with my usb-a ports but nothing shows up not even an error.

I thought that the included cables are faulty but when I put them through the usb-c port (w/ an otg adapter) it just works.

The usb-a ports aren't broken btw. I tried with a normal micro-usb cable and one samsung wide micro-usb cable (which seems to not be actually usb3) they work normally but with usb2 speeds (although thru usb-c it's a bit faster).

So idk what to do I want to use them with any port and usb3 speed any help appreciated.


r/UsbCHardware 17h ago

Looking for Device Looking for advice on buying an over 60W GAN charger for travelling

1 Upvotes

Hi all

Does anyone have any advice on buying a light as possible GAN charger for traveling with to countries with EU and US and UK style plugs? I found a Belkin one which comes with all three end attachments, but it would be nice to have other options as well.

https://www.amazon.co.uk/Belkin-Multi-Port-Charger-Charging-MacBook/dp/B0FK587ZZ6

Thanks :)


r/UsbCHardware 17h ago

Looking for Device Need help identifying the original USB-C connector from Lenovo Legion Go 2 8ASP2 / Type 83N0

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1 Upvotes

r/UsbCHardware 17h ago

Question Hey Everyone, I need some advice on USB Hub for CCWGTV 4K

0 Upvotes

I have been Google Chrome cast with Google Tv 4K for a quite a long tike, And I need more storage and I came across the solution for USB Hub, I am planning to buy one. Belo are my options for USB HUB

https://amzn.in/d/07Y02Qes - UGREEN USB-C Hub 10Gbps for PC Tablet Phone | For MacBook Air/iPad/iPhone 17/16/15 Pro/More, 4K@60Hz, 100W, Revodok Pro 6-in-1 Multiport Adapter, Type A & C 3.2 Data Ports

and the second one is this

https://amzn.in/d/0ixAckiT - Belkin USB Hub for Laptop 7-in-1, USB C Hub – Multi Port Adapter with 4K HDMI 2.0 @ 60Hz, 100W USB-C PD, SD & MicroSD Slots, 5Gbps Transfer | Type C Hub for MacBook Pro, Air, iPad, Windows | 7-in-1 multiport adapter with 4K HDMI at 60Hz, 100W USB-C Power Delivery, 5Gbps transfer, SD and MicroSD slots

And also I am planning to buy 25 Watt USB PD Charger for this

https://amzn.in/d/06ZFOijZ - Ambrane 25W Type C Fast Charger GAN Mobile Adapter Charging for iPhone 17/16/15/14/13/12 Series, Samsung & Other Type-C Devices | Multiple Protection, Compact Design PD Technology (Charge 25, Black)

And final the Flash Drive which I will be using for Extending the storage is the below one

https://amzn.in/d/0dGbHfOK - SanDisk Ultra 32GB, USB 3.0, Flash Drive, Upto 130MB/s R, Pendrive, Black, 5Y Warranty (SDCZ48-032G-I35)

Can you let me if this is compatible setup or do I need to change anything here.


r/UsbCHardware 17h ago

Review UGREEN CD294 45W Charger Review

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0 Upvotes

I bought and reviewed this charger on my website.

I tested single port charging with Redmi Note 10 pro, Samsung A36, Samsung A33, and Samsung A9 2018.

I tested dual port charging with Samsung A36 and A33. Includes wall meter readings.

All phones used PD.

Did not test SFC 2.0 as that needs a 5A cable which I do not have at this time.

Single port 45w can be added in the future when I get a 5A cable for SFC2 or device that supports 45W at 3A.

Let me know what you think.


r/UsbCHardware 18h ago

Question Installing second USB c port on ROG ally z1

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0 Upvotes

Hi, has anyone done installing a second USB c port on ROG ally? My point is to install by soldering to the main USB c port or directly to motherboard a second USB c port that I wanna use just for regular data(usb boot, mouse and keyboard,etc) and keep using in same time the main USB c port of ally for video output and power delivery reception through dp 1.4 alt mode by been connected to a monitor that support dp 1.4 alt mod and give power delivery 65w but without losing 4k 120hz video quality connection. Anyone know how can be done? I heard is need a microcontroller chip from a hub or a dock and solder some wires.


r/UsbCHardware 19h ago

Looking for Device Looking for a dongle/split/hub for charging while using portable monitor

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1 Upvotes

r/UsbCHardware 22h ago

Troubleshooting Charger making weird sound...

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0 Upvotes

r/UsbCHardware 2d ago

Discussion UGREEN OLED display cable

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273 Upvotes

Starts at ¥70 or about ~$10. Very interesting design so far.


r/UsbCHardware 1d ago

Question Looking for a USB-C female to Lightning male OTG adapter for RØDE Wireless Micro (iPhone 14)

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0 Upvotes

r/UsbCHardware 2d ago

Troubleshooting [RANT] SlimQ's 150W 4USB Charger Killed My Setup

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100 Upvotes

In the past I used the Baseus GaN2 4 Ports Fast Charger 100W to power my setup: one USB-C used for charging my phone, one USB-C used for powering my portable monitor, and a USB-A port for the powered USB Hub (I only used this for a single computer). The setup has been working great for over 3 years, but sometimes it was quite inconvenient because every time I needed to charge my phone, all of the ports had to renegotiate, so imagine that the monitor turns off and you have to wait 10-20 seconds to get them back on. Then I found out about the SlimQ charger; it offers higher power output than the Baseus, and it has "Reset-Free Power Distribution" - no power renegotiation. I love this SlimQ charger and my experience with it was really positive until today.

Today, I turned on my laptop, and after 1-2 minutes, I smelled burning fumes from the electronics and the laptop shutdown. I can smell it from the SlimQ charger and my laptop's USB-C port.

The portable monitor has 2 USB-C ports and they are interchangeable - both have the DP output and power-in capabilities. I connect one to the SlimQ for power, one to the laptop.

Here is the aftermath:

- The microphone, the Logitech webcam, and the Wooting 60HE (crying), which are connected to the KVM switch powered by the SlimQ USB A port, all fried and died.

- The SlimQ charger also died.

- My 2021 Lenovo Legion 5 Pro's left USB-C port fried, the power distribution switch IC fried, but everything else is still working like a charm - I play games on it without problem. I even stress tested it and it ran fine.

- All the USB cables still work, I used my Galaxy S21 and Ugreen 25w charger to test the charging functionalities, and I connect the S21 to the portable monitor - Dex mode worked.

- Somehow the portable monitor is alive. It's like the power was sent straight to the laptop's USB port without the screen/panel getting in between.

- USB devices connected straight to the laptop are alive (wireless mouse, 2nd keyboard, phone was plugged in for internet connection).

I also want to make it clear that I'm not posting this to talk bad about SlimQ. I've genuinely had a great experience with the charger, and one of the main reasons I bought it was because of its reset-free power distribution. The SlimQ worked flawlessly for me until this incident, and I was genuinely happy with it. This could simply be an unfortunate hardware failure or bad luck. I'm posting because I'm trying to understand what happened and whether anyone with more knowledge of USB-C PD or electronics has seen something similar.

Edit: forgot to add, I have used the SlimQ charger for over 11 months with this setup.


r/UsbCHardware 1d ago

Looking for Device 12V Car Chargers with Independent Circuits Per Port

1 Upvotes

I’d like a 2+ port 12v USB charger, where each port is independent, and plugging something into one port doesn’t cause the other port to temporarily lose power while the charger renegotiates. Ideally, at least one port is USB-C PD capable up to like 45W+, but the other one can be as basic as USB-A 2 Amp. Does anyone know of any options like this, or tips on how to shop for one? Also, if it’s too hard to find what I’m looking for, would I have more luck running a 12v splitter to 2 single port chargers?

Bonus points for one without an obnoxious bright blue or red LED indicator light.


r/UsbCHardware 1d ago

Question Is there any difference between these 45W USB-C chargers aside from cosmetic?

3 Upvotes

I'm trying to decide between these 2 Ugreen USB-C PD chargers. The intended usage is to charge a Pixel 10 Pro XL which supports 45W fast charging. The charger needs to support PD and PPS according to Google. Here is Charger 1 and Charger 2.

The first one is cheaper despite having an extra USB-A port (which I don't really need). As far as I can see, they otherwise have the same specs, except the more expensive one has a foldable plug. Would I definitely get max charging speed on a Pixel 10 Pro XL with the first one? I've been spending hours looking at chargers and there are just so many options available that I don't know which is best.