What non standard thing are they doing with the power supply? The PSU looks like a regular usb c PD supply to me (even supports 12v, nice!)
Edit: wtf! 5v@5a yeah thats non standard. What were they thinking?
What non standard thing are they doing with the power supply? The PSU looks like a regular usb c PD supply to me (even supports 12v, nice!)
Edit: wtf! 5v@5a yeah thats non standard. What were they thinking?
The tweet in the picture is from April 17 2022. so as of today it is. 1 year 8 months 5 days old.
https://twitter.com/Ciara_BK/status/1515504916600606720
Of course i cannot say whether this is thefirst time this joke was made.
only option for messaging between Android and iOS.
Well aside from like all the messaging apps, right?
It might sound surprising but it makes a lot of sense to have different standards supported over USB-C. USB-C is just a form factor of the connector.
For USB 3 or USB4 speeds you physically need more wires in the cable, while for USB 2.0 you only need 5 wires. Also if you want really high data transfer rates of 40 or 80Gbit/s the cable can only be around 1 meter or 3 feet long.
So because USB-C supports different USB versions, a charging cable can simply be USB 2.0 and be cheaper and long and do it’s job just fine.
If USB-C was only USB4 it wouldn’t be all that useful. Devices like wireless mice or DACs or game controllers wouldn’t/ couldn’t use it and the cables would all be thick and expensive and short. And for charging regular things we’d still be stuck with micro USB.
The only downside is that, yes if you are doing a thing where you need high speeds such as connecting a screen or external disk to a PC you do need to check that you’re using a high speed cable, but pretty much all good quality fast cables have the speed printed onto the connector housing.
But yes the iPhone restricting speeds to 2.0 is strange and most definitely just a trick to sell more pro models. There are plenty of devices that simply have no need for anything besides 2.0, be it because they send no data or just very little. But phones really aren’t in that category.
They had some serious cryptography issues (including no perfect forwards secrecy!!!) but they have promised to fix that. I’ve not yet seen any paper analyzing the new protocol. But maybe it could be good?
Edit: Here’s a paper with some of the issues: https://www.research-collection.ethz.ch/bitstream/handle/20.500.11850/623004/main.pdf
They conclude that:
The seven attacks we have presented highlight fundamental weaknesses in the design of Threema. Indeed, the Threema protocols lack basic properties that are nowadays considered de rigueur for a messenger app to be regarded as secure: forward secrecy with respect to a malicious server, and protection against replay, reflection, and reordering attacks. We believe that the cryptography in Threema has design flaws that need to be addressed in order to meet the security expectations of its users
They have redesigned their protocol since then but again i have yet to see a third party look at it but TBH i haven’t looked into it.
The S22 charges at a maximum of 45W. That’s technically within the 60W limit that all USB-C cable can handle. I could not find how exactly how the charging works but it’s possible that they are doing something like 9V @ 5A and thus are requiring a 240W or 100W cable. However it looks like in this particular case it might not matter.
GSMArena says the Galaxy S22+ charged to full in 62 minutes on the 25 W charger and 61 minutes on the 45 W charger. The Ultra took 59 minutes on the 45 W charger and 64 minutes on the 25 W charger.
What kind of phone do you have? All USB-C cables should be able to do at least 60W charging.
That’s not really true. The E-Marker in the cable does not do the negotiations. Its involved in it but its not as complicated as you make it sound. There are a total of 3 different completely backwards compatible cable types in regards to power delivery. 60W , 100W (which is legacy) and 240W.
Just today I was wondering why I only have a 500GB sata ssd in my Laptop and then I realized that I bought it in 2018 and the price difference was just not worth it at the time. Nowadays it feels like one might as well get a 2TB nvme. If prices keep falling like this soon a 4x4TB nvme NAS will be positively cheap!
Actually the naming scheme you propose e.g. USB4 80Gb is the real naming scheme! It’s officially what the specification demands manufacturers label their products. “USB4 version 2” and so on are explicitly only the names of the internal standards that only concern people writing drivers or designing chips.
I have no idea what tech journalist are smoking. This has been a problems for so many years but they keep using the internal names. I mean nobody is complaining about having to always say “IEEE 802.11bn” instead of WI-FI 8