Hi all, Recently purchased a Norco 4220 and am in the process of setting up ubuntu linux on it and getting things running. For context I have set up the bottom row of drives (4 total) to be 8TB archive drives addressed individually using reverse breakout cables. These are connected directly to the mainboard. Now i don't know much about the hardware side of RAID setups, and trying to read through the jargon of some of the foums ive visited has been very unsuccessful in trying to teach myself. Regardless looking for a couple of things to service 16x 4TB WD RED drives. Take advantage of RAID 6 for dual drive redundancy use the full capability of the sata transfer speed of the drives. From what i can read i need a raid card with 4x mini SAS connectors to connect to the backplanes similar to the below. https://www.newegg.com/Product/Product.aspx?Item=N82E16816151139&ignorebbr=1 Can anyone recommend me a RAID card that will support the 4 RU size of the case and meet this need and / or give me a little more information by pointing me in the right direction on materials to read. Thanks!!!