USB Type-C Cables Get Logos For 60 Watts or 240 Watts

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USB Type-C Cables Get Logos For 60 Watts or 240 Watts

engine

11:00 am on Oct 1, 2021 (gmt 0)

According to the USB-IF (USB Implementers Forum) there are new logos for certified USB Type -C cables that support 60 Watts or 240 Watts. Additionally, the new logos will offer a simple way to identify performance, as well as the power of the cabled.

“With the new higher power capabilities enabled by the USB PD 3.1 Specification, which unlocks up to 240W over a USB Type-C cable and connector, USB-IF saw an opportunity to further strengthen and simplify its Certified Logo Program for the end user,” said Jeff Ravencraft, USB-IF President and COO. “With our updated logos, consumers can easily identify the USB4 performance and USB Power Delivery capabilities of Certified USB-C Cables, which support an ever-expanding ecosystem of consumer electronics from laptops and smartphones to displays and chargers.”

PDF [usb.org...]

Earlier story USB-C Standard V2.1 To Handle 240 Watts [webmasterworld.com]

IanCP

10:03 pm on Oct 1, 2021 (gmt 0)

USB Type -C cables that support 60 Watts or 240 Watts

Why?

IanCP

10:11 pm on Oct 1, 2021 (gmt 0)

Given the currents at those wattages you won't be using normal size USB Cables unless they jack up the voltages dramatically.

Taking a cable capable of safely handling 2.5 amperes the voltages required - without overhead to compensate for losses would need voltages around 25V and 100V respectively.

As I said before... Why?

IanCP

10:18 pm on Oct 1, 2021 (gmt 0)

OK apparently 5 amperes seems to be the go...

USB Power Delivery offers the following features:

• Increased power levels from existing USB standards up to 240W.

• New 28V, 36V, and 48V fixed voltages enable up to 140W, 180W and 240W power levels, respectively.

• An adjustable voltage supply mode allows the device being powered an ability to request intermediate voltages between 15V and up to the maximum available fixed voltage of the charger.

[usb.org ]

phranque

2:53 am on Oct 2, 2021 (gmt 0)

i can imagine this will eventually let the smoke out of quite a few devices.

tangor

1:44 am on Oct 4, 2021 (gmt 0)

Hmm ... will it run my toothbrush---or microwave?

Hopefully more than labels will prevent power mismatches. Then again, my USB needs are pretty simple (external disks and camera).

engine

8:07 am on Oct 4, 2021 (gmt 0)

Dodgy companies will still put the logo on to fool consumers, so we'll still have to look out for the cheap rubbish incapable of handling even the basics.