I'm getting low random read/write IOPs in between 50-60k (sata 2 speeds), as soon as I plug a SSD back into my motherboards SATA 3 ports I get the advertised speeds. However, Sequential read/write speeds are high across the board, only the IOPs are being affected by this adapter. Specs: http://www.ebay.com/itm/New-IT-Mode-LSI-9211-8i-SAS-SATA-8-port-PCI-E-6Gb-s-Controller-Card-/252344098349?hash=item3ac0e15e2d:g:-w4AAOSwGYVXAyCn&rmvSB=true3930k GA UD5 x79 Samsung EVO 840/850, 256gb and 500gb Samsung 840 PRO 500gb I currently have the latest IT firmware installed (2118it.bin / v20.00.00.00) and the newest driver from 2015 (126.96.36.199) opposed to the initial 2009. However, I was told that this is a SAS 2.0 device and I will only get sata 2 speeds. This makes no sense to me, because my sequencial read/writes hover around 550mb, its only the IOPs that are low. Any idea what's going on? My IOPs went from max of 60k to 70k after firmware update, but I should still be getting 90k+ Running out of time to return this thing, my last idea could be that it should be in a PCI 3.0 or 2.0 slot, I've also set Windows power management to performance. Thanks!