NewerTech MAXPower 4-Port eSATA 6G PCIe 2.0, High-Performance RAID 0/1/5/10/JBOD Controller Card Adds 4 x 6G eSATA Ports to Apple Mac Pro 2006-2012, PC with PCIe Slot, or viaThunderbolt PCIe Carrier RAID Controller with Port Multiplier support for up to 20 drives eSATA Hot Plug Support Four eSATA 6Gb/s ports (600MB/s per port) PCIe 2.0 x4 (2GB/s bandwidth) PCI-Express 2.0 x2 bandwidth (Hardware Interface PCI-Express x4) Up to 1000MB/s total card bandwidth under optimal conditions* Four eSATA 6Gb/s ports eSATA Hot Plug Support Port Multiplier support for up to 20 drives RAID level 0, 1, 5, 10, JBOD (SPAN and individual drive modes) support Convenient browser-based management SHI (Storage Health Inspector) for the monitoring and reporting of drive health Compatible with SATA based hard disk drives and solid state drives Mac Pro 12-Core (Mid 2012)<span class="a-text-bold">Model ID:</span>MacPro5,1(2.4GHz, 2.66GHz, 3.06GHz) Mac Pro 6-Core (Mid 2012)<span class="a-text-bold">Model ID:</span>MacPro5,1(3.33GHz) Mac Pro 4-Core (Mid 2012)<span class="a-text-bold">Model ID:</span>MacPro5,1(3.2GHz) Mac Pro 12-Core (Mid 2010)<span class="a-text-bold">Model ID:</span>MacPro5,1(2.66GHz, 2.93GHz) Mac Pro 8-Core (Mid 2010)<span class="a-text-bold">Model ID:</span>MacPro5,1(2.4GHz) Mac Pro 6-Core (Mid 2010)<span class="a-text-bold">Model ID:</span>MacPro5,1(3.33GHz) Mac Pro 4-Core (Mid 2010)<span class="a-text-bold">Model ID:</span>MacPro5,1(2.8GHz, 3.2GHz) Mac Pro (Early 2009 8-Core)<span class="a-text-bold">Model ID:</span>MacPro4,1(2.26GHz, 2.66GHz, 2.93GHz) Mac Pro (Early 2009 Quad-Core)<span class="a-text-bold">Model ID:</span>MacPro4,1(2.66GHz, 2.93GHz, 3.33GHz) Mac Pro (Early 2008)<span class="a-text-bold">Model ID:</span>MacPro3,1(2.8GHz, 3.0GHz, 3.2GHz) Mac Pro (8-core)(April, 2007)<span class="a-text-bold">Model ID:</span>MacPro2,1(3.0GHz) Mac Pro(August, 2006)<span class="a-text-bold">Model ID:</span>MacPro1,1(2.0GHz, 2.66GHz, 3.0GHz) Xserve Quad-Core (Early 2009)<span class="a-text-bold">Model ID:</span>Xserve3,1 (2.26GHz) Xserve 8-Core (Early 2009)<span class="a-text-bold">Model ID:</span>Xserve3,1(2.26GHz, 2.66GHz, 2.93GHz) OWC Mercury HeliosThunderbolt PCIeexpansion chassis PCs compatible with the specifications listed. Marvell 9235 Four eSATA 6Gb/s ports PCI-Express 2.0 x2 bandwidth (Hardware Interface PCI-Express x4) Full-height card Up to 1000MB/s total card bandwidth under optimal conditions. OS X 10.6.8 to 10.11 Hardware: Intel-based Mac with available PCIe 2.0 or 1.0 slot* or Thunderbolt equipped Mac utilizing a Thunderbolt PCIe expansion unit. Operating System: Windows Vista and later If more than one MAXPower 4-port eSATA 6G PCIe 2.0 Controller Card is installed in a PC, the computer will not boot. PC and Mac Bare Enclosures Full Solutions Bootable in RAID Support Mac OS X 10.6 (Default Windows bootable. Mac boot supported upon configuration.) Bootable in MacPro3,1 and later as well as Thunderbolt equipped Macs utilizing a Thunderbolt PCIe expansion unit. Backward compatible with SATA Revision 1.x (1.5Gb/s) and 2.x (3Gb/s) hard drives and solid state drives. Compatible withOWC Helios Thunderbolt Expansion Chassis. Yes Uses the same connecting cables utilized by earlier SATA 1.5Gb/s and 3Gb/s devices. SATA 6Gb/s cables highly recommended for optimal performance when connecting SATA 6Gb/s devices. Support RAID 0, 1, 5, 10 &amp; JBOD