ADAPTEC 51245 512MB,SAS/SATA,12port+4xext,RAID 0/1/5/6,PCI-E x8 KIT

12 internal ports plus 4 external ports, half-length form factor
1.2GHz Dual Core RAID on Chip (ROC)
- High-performance RAID 5 and 6
- Up to 512MB DDR2 cache
Supports up to 256 SATA or SAS drives using SAS expanders
3Gb/s throughput at each drive port
x8 PCI Express host interface
Supports multiple RAID LUNs
Enclosure management support via LED header and SES2/SGPIO
RoHS compliant