Dell S4148 is based on Broadcom Maverick.  S4048 is Trident2 (4048-T is Trident2+) and S5248 is Trident3.

From: NANOG <nanog-bounces+sshali=pluribusnetworks.com@nanog.org> On Behalf Of Drew Weaver
Sent: Tuesday, October 19, 2021 6:09 AM
To: 'nanog@nanog.org' <nanog@nanog.org>
Subject: PowerSwitch S4100 (S4148-ON) chipset

Hello all,

I’ve been googling around trying to figure out which Broadcom silicon is in the S4148-ON.

I haven’t really been able to make much of a determination.

Does anyone know which chipset this is? Trident 1? Trident 2? Trident 3?

Thanks so much if anyone has already figured this out.

-Drew