@ Mr McRaid - from what testing we have done - for SSDs on areca 12XX series and perhaps also on 1880 - 4k stripe is fastest for high iops
I have a later version of the 1231 that allows 4GB cache, the egg offers the 1261 with 4GB also -

http://www.newegg.com/Product/Produc...eca-_-16151063