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Pros: Simple install. Vendor web site has recent drivers. Works as intended without any errors. Low profile and small size avoids blocking airflow.
Cons: No esata? I'd rather have a model with either 2 mSata ports or an mSata and an eSata. That's a different chipset though.
Other Thoughts: Purchased to replace adapter with same chipset from another vendor which would fail in some operations involving large data transfers.
Used for simple mSata 256GB SSD install on the otherwise unused PCIeX1 slot on motherboard. Good way to expand storage when no spare HDD bays are available.
This device is capable of use to create a "hybrid" storage with a small SSD as cache for a hard drive but I haven't tried that.
Pros: Standard implementation of Marvell 88SE91xx which worked for some tasks.
Cons: Really old Marvell firmware. Old drivers on CD. No drivers or firmware on Koutech web site.
Other Thoughts: Buy from another vendor.READ FULL REVIEW
This review is from: areca ARC-1223-8I-MS PCI-Express 2.0 x8 Low Profile SATA / SAS RAID Controller Card
Pros: True hardware raid with cache. Includes required cables, has cooling fan, and low profile card doesn't take up much space. Good performance and simple configuration. Current bios installed and drivers are easily available.
Cons: Documentation was lacking for the various configuration options and I couldn't find it at the vendor site either. Best settings for SSD performance would be good to know as well.
Other Thoughts: Drivers available include VMWare ESX making this usable and supported for virtual server hosts. I haven't ever had issues with Areca and waited for them to release a Sata III solution.
The competition didn't come with a cooling fan so you had to request one from the vendor which didn't suit me.
The settings default to raid mode so you need to either change the default to pass through (JBOD) or change individual disks to pass through before they show in the OS.