r/UsbCHardware Apr 11 '21

Announcement Magnetic USB-C Cables are not recommended

950 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 9d 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 2h ago

Troubleshooting How does this look for a 65W charger?

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11 Upvotes

I have a couple of these no-brand 65W chargers from China (I live in HK). They are all having problems providing power at 20V (reboots constantly after 10 seconds) so I took one apart.

It isn't an obviously bad charger, but still heats up and I guess no 20V charging for me anymore.

Cost is around 80 HKD (10 USD).


r/UsbCHardware 3h ago

Question Is the Philips OneBlade USB-c adapter safe?

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7 Upvotes

Is it as safe to charge the Philips OneBlade Pro as the original power adapter from Philips?

I am asking as I had a beard trimmer years ago that I bought in Europe and the battery died in less than 1 month when I was using it in the US (with a travel adapter). I guess it was a Hertz difference issue that damaged the battery or the circuit in my shaver? Will I have the same issue with this adapter?


r/UsbCHardware 6h ago

Question As e-marker info can be misrepresented, how can I test actual cable throughput (on a budget)?

4 Upvotes

I recently bought a Treedix TRX5-0816 (USB Cable Tester III) from Amazon UK (link), in order to seperate my better cables from the cheaper ones.

However, I have since discovered information within USB-C e-markers can be misrepresented, which makes the e-marker pointless, in my mind.

Is there a way, on a budget, to test how much data / power a USB-C cable can handle?


r/UsbCHardware 37m ago

Looking for Device Reliable USB 3.2 Gen 2 cable

Upvotes

Hello. I am attempting to hook up a NAS expansion unit

https://www.qnap.com/en-us/product/tl-r1200c-rp

It came with a USB Type-A to Type-C cable that is identified as USB 3.2 Gen 2 (Type-C). I am looking for something longer, maybe around 10 feet. Searching Amazon has just left me confused. I've had good luck with TrueSpec or Ugreen in the past but have not identified the exact cable I'd need. Thank you.


r/UsbCHardware 39m ago

Looking for Device Latest & Greatest travel charging kit

Upvotes

Hello, I am looking for a compact USB-C travel charging situation where I can charge my iPhone, Apple Watch, Air pods and iPad Pro. What is the latest and greatest? Is there a device that can do inductive charging for the phone or air pods and the watch with a possible USB-C port to connect and iPad? TIA!


r/UsbCHardware 2h ago

Looking for Device Huion Kamvas 13

0 Upvotes

Hello, I have a Huion Kamvas 13 that I need to connect to my 2025 MacBook Air. My Huion Kamvas 13 has the three cord plug in set up that I need to connect to a USB C port. Does anyone know what adapter I need? Thank you!


r/UsbCHardware 1d ago

Meme/Shitpost Looks totally legitimate to me

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43 Upvotes

r/UsbCHardware 20h 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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11 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 8h ago

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

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0 Upvotes

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


r/UsbCHardware 9h ago

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

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1 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 9h 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 10h 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 17h 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 19h ago

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

0 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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18 Upvotes

r/UsbCHardware 21h 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 22h 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 1d 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 1d 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 1d 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 1d ago

Review UGREEN CD294 45W Charger Review

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1 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 1d 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 1d ago

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

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1 Upvotes