SupermicroAOC-SLG3-2M2 PCIe Add-On Card for up to Two NVMe SSDs

Works well in my computer with a Supermicro X12SPi-TF motherboard. It is running with two drives in it without problems. I did not have to do anything in BIOS to set lane splitting for it to work properly. All-in-all a solid product that performs without problems for me.

Allowed me to install two sticks into a Dell R630 rack server, and still working good months later.

Works great on my dell r630 for adding M.3 ssd inside the server. It adds 2 ports

Installed in Dell Precision T5810 workstation in x8 lane with Intel 1TB SSDs. BIOS is set to "Legacy" mode, and surprised that it will still boot from Socket-1. Drive in Socket-2 is accessible, but it cannot be selected for boot even though visible in BIOS and temporary boot-selection menu ("F12").I also had ordered the ASUS Hyper M.2 X16 PCIe 3.0 X4 Expansion Card V2. Under same BIOS "Legacy" settings, it will only boot from Socket-4, but other Sockets 1,2 & 3 drives are all visible.I think the ASUS Hyper M.2 is a better value in my case as it is used to triple boot: Centos-7 (Socket-4) and "grub2" allowing me to get to Windows-10 (Socket-3), Centos-8 (Socket-2). Socket-1 is just used as an NTFS backup disk.Have not tried UEFI BIOS setting for either case.

If you are using a supported SuperMicro Motherboard, this card is amazing.The only difficult part is getting the correct PCIe bus set to 4x4x4x4x bifurcation.You will likely need your motherboard's manual and a little bit of help from SuperMicro's documentation.SM BIOS are notoriously complex beasts -- mine is a dual processor scalable Xeon board and the setting is down 6 levels into the Advanced menu, and I had to know the correct CPU and PCIe lane to configure. I figured that out from looking at the Mobo's physical layout diagram.EDIT: What an absolute beast. I've been running two of these at high temps and heavy (heavy) loads for a couple of years now. Solid.

If you have a board that supports bifurcation, it might still not work regardless of any settings you choose in BIOS. I tried it on several non-server boards, like Asrock, Asus, MSI, etc. and it will not pick it up where other 2-4x NVME cards do show up.I suspect you need a server board with a specific set of components for it to work, or the jumpers need to be tweaked. I wasn't brave enough to mess with the jumpers, all my MBs are too expensive to risk it on a cheap card.

In my case, it was not listed as compatible with my SuperMicro System Board. I would get PCI events/alerts from the IPMI whenever I put the system under load where the NVMe sticks would be hit, however, it worked and the underlying OS (FreeNAS) never complained. Ended up pulling it as I didn't like the alerts. Mainly wanted this solution as I could look at using 110mm Optane sticks for the ZIL as the onboard NVMe M.2 slot is only up to 80mm; and I've yet to locate a M.2 NVMe that size that supports power-loss-protection; which given the nature of a ZIL; is pretty important.Marking it 4 stars because it worked, but, knocking 1 star because something like this should just simply work w/o generating alerts and if the system supports bifurcation (mine does) then it should just work. Probably works find in systems that SM says it's supported for; and of note, SM Support was willing to help troubleshoot.

I bought this card after seeing it used on YouTube. BuildorBuy. The m.2 connector is tall enough to put a heatsink on the SSD that wraps around it. When the card arrived, it only came with a short mount bracket. I contacted the seller to see if I could buy the standard height one. The seller promptly responded and said he would send one free of charge. A quality card from a quality seller. I would definitely buy from this seller again!!