I've been looking for a good solution to replace my massive Dell Poweredge file server with 8 x 4TB 3.5" drives in RAID 5 config, with a more compact and up to date system that draws less power, and these are the answer. I actually purchased 3 x 3001K's by accident, when I meant to only buy 1 of them, but I guess I can find a use for the other two some day. I later decided to get the 3002K as well since I realized that the board I intend to use these on will not support Bifurcation in all the slots, just the first x16 slot. It seems that to get support in the other slots, it takes a very specific setup with the Motherboard and CPU where as the CPU needs to support a certain number of lanes, depending on how many you want to have. All the boards and CPU's that can do this, are VERY pricey, so it seems pointless to go that route, when I can just buy the 3002K and do the same thing nearly.In my case, the goal was to have 2 of these cards running with these low cost [[ASIN:B0BN5WXP8R4 4TB NVME drives]] that do work well and have decent speeds for what I need them for, giving me a total of 32TB for now. That, on top of the 28TB my current server has will give me much more space that I have desperately needed. I intend to take those 8 4TB 3.5" drives out of that Dell server, and put them into a MiniITX NAS case with a more modern board and CPU. Sadly, I just now realized that the CPU I purchased it does not have an integrated GPU, so once I get things set up, I will need to remove the temp GPU I use and hope I can use it without any, or with an HDMI dummy dongle so I can remote to it when I need to. All else fails, I can use a USB video adapter.While I wait for all the parts to be received, I tested my first 4 x 4TB NVME drives that I already owned and ran into my first problem. With the 3001K, they all fit into the slots fine as there was a lot of space between the sockets, but could not test it without removing my GPU's in my main desktop. So when I got the 3002K, I started to make the swap, only to realize that the sockets are much closer together, and since I had applied the heat-sinks that come with the NVME drives to help keep the heat down, I found that the drives would not fit onto the 3002K, so with LOTS of patience, I was able to pry up the heat-sinks from 2 of the drives. I needed to be VERY careful as it used a VERY strong adhesive to keep the heat-sink on there, but I was able to get them off. Got the card installed into a Gen 4 riser cable I had to test in my main system, and the card so far is working great.As expected, it's not hardware raid or anything. Each drive acts as a separate drive and using Windows, I was able to wipe them all and make a software raid with them. Clearly the down side to me doing things like this is if 1 drive fails, then anything that the failed drive had will be lost, with no way to recover it. As much as I would love to use mirroring, I just can't see wasting 16TB on that. The data won't change that often, so it should last me a very long time (In terms of the SSD life anyway, not counting some other hardware failure). Maybe once I get all the cards installed, I can make a striped RAID with software, but that means I will need to wait till I have all the drives I want, so I will play that by ear.As for the speeds, when I tested, I was getting the drive's normal speeds at around 3200MBps Read/1800MBps Write which is fine by me. (the numbers from the app in my screenshot may be a little skewed as I had been transferring files that was paused)Aside from the large price tag, and the spacing issue, so far it's working great. Already started to transfer the data off of my file server as a test. Once I get the new system set up, I will be buying four more drives to set up the 2nd card, as well as moving those 8 3.5" drives to the new case, with the RAID controller that the file server uses (Maybe). I may be able to combine the 8 3.5" drives with these to make 1 massive raid, but I would need to find some place to move all the data off the file server to do that, and I really don't have 24+TB of space between all my USB drives and all that lol.