The original post: /r/datahoarder by /u/l008com on 2024-12-05 15:05:19.

I found a USB to eSATA adapter on ebay that very explicitly states it supports port multipliers. BUT I found out the hard way that many port multipliers don’t support optical drives, only HDD/SDD drives.

Does anyone know either a way to determine what is supported, or what specific jmicron PM chips are known to work with ODDs, not just HDD/SDDs?

You might think, “just read the manual”. But the manual never gives any info like this. The product specs never give any info like this. The only way I’ve been able to figure it out is to buy one and try. But I’d really like to know ahead of time here.

If you haven’t seen my posts before, I have an 11 bay CD ripping tower that uses USB2 and thus is bottlenecked to 7 drives. But I want to upgrade the insides to USB3 so I can use all 11 drives and still have a HUGE margin for error so I never get even remotely near a bottleneck of bandwidth.