ADAPTEC - RAID Adaptec 71605 16-Ports SAS/SATA RAID ControllerRAID 71605 SINGLE SAS/SATA PCIESerial Attached SCSI (SAS) - PCI Express 3.0 x8 - Plug-in Card - RAID Supported - 0, 1, 1E, 5, 6, 10, 50, 60 RAID Level - 1 GB

Use this adapter for my file system with 16 hdd. Works well out of box. However when I tried to build raid 5, it stuck at building/verifying raid array and while verifying, the read write speed are super slow...thought this could be a driver issue but I tried and problem still there. Support guy told me it could be due to one bad hdd which I don't think so.Fianally I said screw it and use HBA mode instead. It works great...superb speed and all my drives functioning well.Not sure what happened...

Does it's job as a raid card just fine. Came without the pcie slot bracket. also, it gets very hot and needs good airflow, when it overheats it makes a really loud high pitched beep. Took me a while to track down where the sound was coming from. Most of the driver and utility packages for linux are really old and a pain to get compiled on modern linux, although that doesn't stop it from woking.

INFO SOURCE: Microchip [dot] comSubject Matter: Adaptec RAID 71605Adapter RAID 71605 Status: Discontinued[Verbatim in Part]“ ... Adaptec will no longer provide support via phone or email but limited information may be available on our website...”ADDITIONAL WARNING: Shipped with NO cables.RECOMMENDATIONS: Need a robust 16-port SATA III RAID Controller Add-In-Card (AIC) for a PCIe 3.0 bus slot. Look for an AIC that is NOT discontinued and that has NOT been sitting on a shelf in a warehouse collecting dust for several years. Discrete electronic components like Capacitors can dry out altering the required capacitance value(s) and also introducing intolerable errors causing Equivalent Series Resistance (ESR).