Uploaded November 2022 | Updated September 2026, 2 weeks ago

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Check out Keysight's RF Back to Basics Bootcamp: https://keysig.ht/XRnZU2

Free Altium Designer Trial: altium.com/yt/greatscott!
(AD, Paid Promotion)

Previous video (100W Power Bank video): youtu.be/_WI9Nwqvplo

You can get the shown parts here: (affiliate links)
Power Supply: amzn.to/3WGNE18
USB Tester: https://s.click.aliexpress.com/e/_DmgsbSP
USB PD Trigger board: https://s.click.aliexpress.com/e/_DDbqr3p
Constant Load: https://s.click.aliexpress.com/e/_Ddo3Rqn
Cable A: amzn.to/3UgVAVi
Cable B: amzn.to/3DNu0YH
Cable C: amzn.to/3NQ3tik
Cable D: amzn.to/3GayXxV
Cable E: amzn.to/3zTBwAp
Cable F: amzn.to/3hlpwRv
Cable G: amzn.to/3WFtvIX
Cable H: amzn.to/3zSs40d
Cable I: https://s.click.aliexpress.com/e/_DdpVABH
Cable J: aliexpress.com/item/1005004089914259.html?spm=a2g0o.order_list.0.0.2e511802HMp73j
Cable K: https://s.click.aliexpress.com/e/_DdrDicP
Cable L: https://s.click.aliexpress.com/e/_DdpVABH
Cable M: https://s.click.aliexpress.com/e/_DBN77d9

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In this video we will be having a closer look at USB-C cables and find out why most of them are actually not that great. We will be focusing on 100W power transfer so very fast charging. I will show you how much power loss 13 different USB-C cables produce and why most of them do not meet the standard specs. Let's get started!

Websites which were shown/used during the video:
usb.org/usb-charger-pd
mi.com/global/product/xiaomi-11t-pro-120w-xiaomi-hypercharge
usb.org/document-library/usb-type-cr-cable-and-connector-specification-release-22
satechi.net/blogs/news/pd-3-1-protocol-everything-you-need-to-know

Thanks to Keysight for sponsoring this video.

0:00 The Problem with USB-C Cables
1:49 Intro
2:26 60W/100W cables?
3:14 E-Marker Chip?
5:04 Test Setup
6:42 The Worst Performing Cable
7:43 Test Results
9:50 Verdict