I know (edit) the primary NIC is supported, but I don't know about the main chipset or SATA controller(s).
Note that if the SATA controllers do work, they will not work in RAID mode if they are not FULL hardware RAID controllers (e.g. if they are 'fake raid' needing special drivers and OS support).
If the board doesn't work, Astaro promises much more hardware support in version 8; a beta will be out in the next couple months.
Oops... just noticed only one NIC is the 82574L; the rest are 82576EB which may not be supported (they're not in the HCL nor found in a search of these forums).
Also, I don't know if the SAS RAID would be supported, esp. since Intel doesn't mention the chipset.
6 SATA ports (3Gbps) via Intel® 3420 chipset with Intel® Embedded Server RAID Technology and Intel® Matrix Storage RAID Technology
Modular 4 port SAS and SAS RAID options via Intel® I/O Expansion Module
6 SATA ports (3Gbps) via Intel® 3420 chipset with Intel® Embedded Server RAID Technology and Intel® Matrix Storage RAID Technology 6 SATA ports (3Gbps) via Intel® 3420 chipset with Intel® Matrix Storage RAID Technology
Matrix on all the boards mentioned..fakeraid. as far as the modular thing..whether or not it's fakeraid depends on the chipset of the daughterboard. on a base level it's fakeraid.
