ASUS Hyper M.2 X16 PCIe 3.0 X4 Expansion Card V2 Supports 4 NVMe M.2 (2242/2260/2280/22110) Upto 128 Gbps for Intel VROC and AMD Ryzen Threadripper NVMe Raid

Using in Proxmox with TrueNAS as a VM. Motherboard supported PCIe bifurcation so I'm running 3x2TB nvme mirrored (I don't need a ton of storage) but the data is important. PCI passthrough worked great and was very easy. Video buffering on NextCloud is much faster than my old external HDD. Was able to get 4.7gbps transfer rate for VM backups with Ubiquiti back end. I'm also able to sync my backups with the cloud at leisure. Great purchase.

THIS.. is Asus Pcie expansion for M.2 and it was a great, convenient product from a brand you trust! This Pcie expansion card fits 4 M.2 cards HOWEVER!! It is at Pcie 3.0 and not 4 so please do not waste your money on newer M.2’s and just get the best value Pcie 3.0 M.2.This product is perfect for a pcie expansion! It comes with everything you will need INCLUDING the retaining screws. It is well built in a polished metal, easy to assemble and comes with thermal pads attached to the housing so it all runs cool.This expansion card gave me exactly what I needed and looks great in my system! With the ability to keep throwing M.2’s in my system I no longer have to worry about sata cables, opening up the back of my case and managing that demon. This has been a great product for my computer, and I am sure you will find this as another great asus product just like I have!

You need to enable "bifurcation" or x4x4x4x4 setting on the usb slot you're going to plug this into, and that setting is in the bios. Once you've done that, you can create a shared file system across the 4 nvme drives you've plugged in, or a software raid setup of some sort (I chose the former).The problems happen when you update the bios. This might happen months later, where you decide your machine's bios needs an update, and all your changes to the bios get wiped. Suddenly you try to boot your system and it can't find the drives. With Linux, this can cause the system to not boot, if you're auto-mounting the combined drive, because only one of the 4 nvme drives attached to the card, can be seen.Anyways, not totally for the inexperienced, definitely understand the limitations. Your system might not even support bifurcation, and you'll see a lot of complaints along those lines like ("can't see all 4 drives"). etc.Overall review of 5/5 because it does what it says, and does it without failure (maybe 3 months so far).

Extremely limited compatability with this card. The listing absolutely does not call out the specific requirements necessary for using this card.Edit: OK. Figured it out. Honestly, these listings really need to point out the PCIE bifurcation requirements.My mobo has this ability, but it's limited to the first PCIe slot and I'm limited to two 4 lane channels on my setup. So, two NVMe drives.Looks like Raid is only for Intel drives too. Still ain't happy with this thing, but it does work.

Love this thing. Great addition to the computer for large storage capacity

I bought this and two Crucial T500 NVME modules ( without heat spreader ) that I configured in a RAID1 mirror. The modules are pcie 4.0 capable, but my computer only has pcie3.0 which is limiting the performance. Still, I am seeing large block reads peak at 6435 and writes at 3144 MB/s. By comparison, a single mid-range SATA SSD gave 558 and 507 MB/s. This is where pcie NVME shines. For random access the drives will be the limiting factor and even SATA overhead becomes secondary.As others have said, your motherboard _must_ support pcie bifurcation to use more than one NVME drive, and you must have a full-width ( x16 ) spare slot with enough pcie lanes for the number of drives that you want to install. For one NVME drive you could get by with a pcie x4 slot. For two, an x8 slot _and_ bifurcation support is required, and for three or four an x16 slot _and_ bifurcation support. Note that the physical width of the slot is not a guarantee of having enough lanes - check the documentation on your computer or motherboard. Many, many motherboards have only a single x16 slot which is typically used for the graphics card, and an x8 slot, then either nothing more or a very small one. The Xeon boards or systems designed for workstation use are likely to be well equipped. Some new graphics cards with pcie 4.0 get by with an x8, which would allow this NVME card to use the x16. Keep in mind that any network card faster than 1G will also need at least an x4 slot.I should add that these modules were configured in a mirror using Intel's VROC, and the motherboard has a VROC dongle to enable the functionality. The computer boots from this mirror without needing any other drives.One caveat: the board is pretty heavy due to the aluminum heatsink. It is not exactly secure in a pcie socket but should be fine if the system is not being moved around.Second caveat: the system's drive LED is not connected to this module and never goes on when it is being accessed

I got this to use in a Dell PowerEdge R730. It installs easy... just a note that the R730 only has one slot that can do 4x4x4x4 bifurcation so make sure that you put it in that slot and also set that option in the BIOS.Windows had no problem seeing all 4 NVMe drives in there, and the speeds in testing were what you'd expect from the NVMe drives I was using (a mix of 512 GB up to 4 TB). I haven't been able to check the heat coming from it but the server itself is reporting all internal temps as normal. For a server install like this with a lot of airflow I wouldn't expect any problems. If this were in a desktop case then just make sure it's got incoming air available to it, I guess.