Intel came on PCI-e SSD market with their Intel SSD 910 card. With a slogan “The ultimate data center SSD” I assume Intel targets rather a server grade hardware, not consumer level.
But before that, few words on the card internals. Intel puts separate 200GB modules, so 400GB card is visible as 2 x 200GB devices in operation system, and 800GB card is visible as 4 different devices. After that you can do software raid0, raid1 or raid10, whatever you prefer.
For my tests I used single 200GB device and pair combined in software raid0 (Duo).