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Date:      Sat, 05 Apr 2025 06:18:52 +0000
From:      "Poul-Henning Kamp" <phk@phk.freebsd.dk>
To:        Steve Kargl <kargls@comcast.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Samsung T7 external SSD support?
Message-ID:  <202504050618.5356IqqY009260@critter.freebsd.dk>
In-Reply-To: <b223ff24-c9ff-4c87-8881-1b47b63bc076@comcast.net>
References:  <39bd6092-4bd9-4086-b202-08b83b425fb5@comcast.net> <35d2361d-80e8-489a-bd9d-6c5ada5736b8@FreeBSD.org> <591a0d84-a74a-4d8e-bd40-04475eb5b457@comcast.net> <b223ff24-c9ff-4c87-8881-1b47b63bc076@comcast.net>

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--------
Steve Kargl writes:


> which is what I expected.  So, the extension cable seems to be an issue.

USB-C is objectively an amazing feat of data transmission, and there is no
margin for shoddy cables.

This is the insides of a USB-C cable:

	https://opencircuitsbook.com/#outtake-28

(The "Open Circuits" book is highly recommeded!)

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.


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