I've been studying to take the CompTia A+ exam and my teacher said that building my own router would be a great way to familiarize myself with hardware and software that wasn't super common place, so I asked around my family if anybody had an old computer parts. Well, Thanksgiving comes around and my Nanna gives me what i discovered to be a Venus T4 Raid array with four hard drives ( unknown make and capacity because i didnt want to risk damage with such old equipment for fear of things being a bit brittle after sitting in a shed since 2006 at the very least) that belonged to my late uncle who passed away while he was living with her. My uncle is the one who sparked my love for technology and computers so I would really like to try and recover the data if at all possible. I want to take out the HDD's but I'm not exactly sure how. I plan on taking it to my class and seeing what my teacher thinks but this is a rather exciting discovery for me as my uncle passed when I was rather young. Thank you in advance for anybody able to help. Below is everything I've found so far about the case at the very least.
https://www.newegg.com/ams-dc-4044bu/p/N82E16817332003
https://www.newegg.com/ams-dc-4044bu/p/N82E16817332003