That’s not necessarily true. If you browse the specifications at the Intel site, it varies a lot. Some generations are strictly 19v, some are a mixture of 12-24v,
some 12-19v. It varies by CPU (maybe and kit but it looked more like CPU).
The marketing literature is often vague, but Intel publishes the actual requirements. Here’s an example side by side of two 11th gen models:
The first is 19 only, the second 12-24.
From: firstname.lastname@example.org [mailto:email@example.com]
On Behalf Of Tom Blahovici via groups.io
Sent: Tuesday, March 30, 2021 12:18 AM
Subject: Re: [ap-gto] Mach2 Slew Speed, Power, and Voltage Question #Mach2GTO
BTW, if you are using an Intel NUC, 19V is not necessary. They work just fine at 12V as per specs.
My NUC is an i5 with SSD, and thurnderbird 3 to 10G Base T adapter. It works reliably with no issues.
Might save a little space and battery power.