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very reliable.

NO RAID Real HBA PCI Gen 3 Works awesome with Windows Storage Spaces

This HBA is super quick, been running for a few months now and runs my lab virtual machines with ease. I run this in a lab environment that I use for training (Exchange, ADFS, Lync, SQL) and it rocks. Connected to 8 15.7K Seagate SAS drives and couldn't be happier.

Super fast file transfer Recognized all of my 24 WD 12TB HDDs upon drivers install without any issues. Comes in IT mode firmware preinstalled so great right out of the box. Extremely well constructed.

It worked with no fuss: shut down ubuntu, popped in the card, hooked up a drive, powered up and there it was in the drives app.

Fast. Copying from my old computer to this one across gigabit ethernet uses well over half the available bandwith. The write speed is just so much better than the on board Intel raid. For another 250, you can add another 15 or 20 drives if you have that need, search for "intel raid expander." And did I say fast. Good tech support.

Compact controller card with an Asmedia controller. Two additional SATA III internal ports. Easy to install in the slot above the first PCI-E x16 slot on an AsRock Fatal1ty Z97 motherboard. Very low cost and well constructed. Doesn't add considerable length to the boot process. Automatically recognized under Windows 10 with no additional drivers required. Packaging was easy to open and a half-height bracket is included.

Super fast M.2 X 3 using raid zero.

Great Raid card. This is not a high performance card, so if your expecting high perf and don't get it, don't complain, buy the card with 512MB of cache if you want high perf. This card is a great on board raid replacement. On board raids are not reliable majority of the time and are not true RAID but Virtual RAID. If you looking for something to take it's place and plan on running RAID 5 for Data storage, this card is great. I have it hooked up to 5 Samsung 2TB 7200 RPM drives and it has been rock solid for nearly 2 years. Write speeds average around 110/mbps going from my SSD to the RAID, this is what I would expect for a Raid card at this price range running RAID 5. I can't comment on SSD perf with this card as I have never done it, but I imagine with Average write speeds of 110/mbps with 7200RPM platter drives you can expect at least double that. Really happy I bought this card as it has never done me wrong in the 2 years I have owned it. The web driven UI is awesome and easy to manage. Setup was a breeze and I had no driver issues with Win 7 x64 or Win 8/8.1. I actually bought another one of these for my Hyper-v Host, Server 2008 R2 Enterprise Edition, no issues there either, driver install was a breeze and raid setup/config was just as easy. If you looking for a Raid replacement for your poor virtual on board raid, this is the answer, buy it and be happy!