Multi HDD Dock

[troothdotcom]

I am currently running my Jellyfin server on an old laptop running Ubuntu Server OS. I have a 8 TB Seagate Barracuda external HDD connected with a Sabrent Docking station and I haven't had any issues. I want to purchase a second bigger external HDD and connect to to my server but instead of having to but a new single HDD Sabrent docking station I was hoping to by a dual or event a multi (4) docking station. I went on Amazon and looked some up but the only multi docking station that I liked isn't compatible with linux and all the dual ones I found left me confused. Was I reading wrong when I read that the docking stations go to sleep? and I even read that I can't access both drives at once? I need the server to be able to access both drives at all times and never got to sleep. I am looking for any and all recommendations If you could please help me with this I'd greatly appreciate it. 

Thanks in advance.