Some picts of my quick but functional SAS expander mounting
A very efficient 350W TFX PSU :
SAS mount :
Mounted in the case.
The setup isn't complete yet (but working). When completed it would have 1x 240GB SSD + 3x240Gb caching SSDs, 6x4TB + 3x5TB HDs : virtualy 39TB with SSD write caching x3.
On this picture I was testing dual link between the M1115 and Intel SAS expander :
Single link :