Areca ARC-1882IX-24

4GB Cache 

PCIe 3.0 x8

4e + 24i Ports 

6Gb/s SAS/SATA

RAID level 0, 1, 10(1E), 3, 5, 6, 30, 50, 60, Single Disk or JBOD

12 x Internal Ports 3 minisas 8087 Connector

4 x External Ports 1 minisas 8088 Port