Dell Z9100-ON 32x100Gb $3.3k

[MiniKnight]

This has the Dell OS and supports SONiC, Cumulus and others Dell Networking Z9100-ON 32P QSFP 2P SFP+ RA Switch Z9100-ON | eBay

And you can use break outs to 25GbE

 

[forroden]

They also run on those C2000 Atom CPUs and had a massive amount of them get replaced on warranty back when that was a thing.

Might be worth confirming before hand if it it's from that generation or the fixed replacement one. I'd guess this late on, it might be the latter though.

 

[necr]

Could be the case here Dell Z9100-ON EMC Switch 32 Port 1/10/25/40/50/100GbE / No Fan / No Power Supply | eBay
Buyers beware!