I have bought a Fusion-io 1.6TB card from eBay assuming it would just work turns out there might be driver issues. Aaaanyway...I thought I would look into perhaps building a custom kernel but I am not seeing Slackware on this list of driver packs supplied by Sandisk (attached). Can I use any of these or do I need to just sell it on? 

 

 

You can  make a feature request to have the driver added to unRAID (if available).

 

Didn't go with it in the end. Good price but no good if not plug and play. Shame as Sandisk seem to have abandoned them. They should just open source the drivers. On the hunt for a decent priced PCIe / NVMe drive now...