ASUS Hyper M.2 x16 Gen5 Card (PCIe 5.0/4.0) Supports Four NVMe M.2 (2242/2260/2280/22110) Devices up to 512 Gbps for AMD and Intel® Platform RAID Functions.

As someone who needed more super fast storage this was the perfect solution. I had already used up all four m.2 slots on the motherboard and needed to add more storage capacity. So far I have only used two of the slots and it seems to be working great but there have been some reviews saying trying to use all the slots doesn't work as well but I have not had any issues out of it. The speeds are also just as good as the ones directly on the motherboard and it was very easy to install. And being that it is from Asus you can expect a quality product that has good value.

The product does exactly what it says it does -- you can install up to four NVME sticks. It's a full-sized card, with a fan and a heat sink to keep the NVMEs cool. If you need to build a high-performance file server, this would be one way to do it.Be advised, the maximum number of NVME devices depends on how much available PCIe bandwidth your motherboard has. It will not support as many NVME devices if you lack the PCIe bandwidth. You may encounter problems if you add this to a computer that already has a high-performance video card or other accessories that use most of your PCIe bandwidth.

You need to know if your motherboard supports a 'bifurcation' function and if you can use the middle pci port if you use a graphics card in the top one. basically, it is a function in the bios that splits your assigned 16x pci express port into 4 4x segments, one for each of your m.2s in this card. Not all mbs even call it bifurcation so if you have an intel board look for VTOC which is the intel m.2 brand RAID unless you use intel ssds (from what I understand but do your own research if you need intel ssds or just an intel mb to use VTOC) dont select VTOC but the bios option should allow non VTOC splitting. I have a TUF x299 mark 1 and in the BIOS, it was under CPU and STORAGE area. it was very obscure, and it took me 4 hours to even learn about this requirement. THE CARD IS WELL MADE AND WORKS GREAT ONCE IT IS CONFIGURED PROPERLY AND I WOULD GIVE IT 4+ STARS. this is a 5gen card, but I put 4gen m.2s in it 4tb. Windows server 2019 recognized the drives. I just wish this would be mentioned in the product description before buying. Good luck, may the odds be forever in your favor

I bought this card specifically because it is the only card I could find (gen5 or otherwise) that has a motherboard controllable fan. Primarily so that I can get an email if the fan stops spinning in my server. Also to be able to tune the fan speed for noise.

The fan that's built into the card is VERY loud. I have five fans in my desktop computer, and the fan in this card is louder than all five of them put together. Also, Asus doesn't go by a typical Amazon return policies, you have to have the outer box, in addition to the product box itself, it came in or you can't return it. I won't be doing business with Asus again.

Its a great little product. Easy to install, just make sure your computer support PCIe Bifurcation. I was able to install the NVME drives in the board and install the board in the computer in less time than it took me enable the PCIe Bifurcation in my Bios. Yeah, this board works great, its really fast and simple to use. Its a real bargain at this price.

FIRST:> Your motherboard must support Bifurcation or splitting of a single PCI-Express slot into multiple lanes.The ONLY boards that support 4-way bifurcation, which would be necessary to use all 4 slots, are server boards that utilize an X299 or newer server chipset, & mostly run on Xeon processors unless you're okay with 4 generation old (X299 support Intel Core CPU's up to 10th gen) system....I eventually plan to upgrade to a W790 based workstation PC which does support all-4 slots but those boards by themselves cost more than my top end i9-13900KS, motherboard, & 64GB of RAM combined. Unfortunately, I cannot reuse the RAM (DDR4) on any W790 board I've found.SECONDLY:> Are you wanting to add additional drive space, or just run a RAID array? If the latter, make sure your motherboard doesn't natively support RAID first, more than half of the models available do support RAID these days. A large portion of those that do not, also do not support bifurcation and you would only be able to use 1 slot out of the 4...Intel has no plans (at least not in their current pipeline) to increase the number of PCI-E lanes supported in consumer CPU's which would also be necessary for a home PC to support all 4 slots. So in the end, this ends up being a somewhat expensive way to add one or two M.2 slots to your PC. Even without a GPU most home boards only support 2 slots, though there are a few older chipsets that support 3 slots if you're not using an add-in GPU.Operation wise, this runs like a champ. I had a brief opportunity to run two Gen5 nvme drives in RAID on this card, & they were phenomenal, even on my Gen4 PCI-E slot. Only real reason for 3 stars instead of 5 is the extreme lack of motherboard support to run 4 slots. As such, there should be a 2 slot version of the card for the normal home users, along side the 4-slot card for server/workstation users.

This works but you cant boot from it.