How To: Apple MacBook Pro RAID 0 Array with 2 Intel X25-M SSDs — PaulStamatiou.com
OWC intros 8 TB SSD RAID on PCIe card for new and old Mac Pros
OWC 2.0TB Mercury Elite Pro Dual SSD RAID Storage... at MacSales.com
Sonnet PR - Sonnet Announces Dual 2.5-inch SATA SSD PCIe 3.0 Card with Hardware RAID Controller and 10Gbps USB-C Port
maxupgrades.com: 5x [1HDD/SSD + 4 HDD RAID] MaxConnect BackPlane RAID Attachment for Mac Pro 2009 / 2010 / 2011 / 2012 [Model ID: 4,1 & 5,1] with 8-Port Areca 1882-8i 6G SATA III RAID Controller with MaxConnect Optical Bay kit
Superspeed 4-drive SSD RAID in a 2006 or 2007 Mac Pro | Low End Mac
Review: OWC Thunderbay 4 Mini SSD RAID - postPerspective
The Sonnet M.2 4x4 PCIe Card adds insanely-fast SSD speeds to Mac Pro