finally found SAS 12g RAID expander.
Intel® RAID Expander RES3FV288
Intel RES3FV288 12GB s Expander Card PCIe French Valley RAID Array Co RES3FV288 | eBay
Intel® RAID Expander RES3FV288
Intel RES3FV288 12GB s Expander Card PCIe French Valley RAID Array Co RES3FV288 | eBay