Adaptec 2244100-R 5805 8-Channel SATA/SAS 512MB PCI-Express LP RAID Controller with Cable Kit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>8 internal ports， low-profile MD2 form factor</li><li>1.2 GHz dual core RAID on Chip (ROC)</li><li>High-performance RAID 5 and 6</li><li>Up to 512 MB DDR2 cache</li><li>Supports Up To 256 Sata Or Sas Drives Using Sas Expanders</li><li>3 Gb/S Throughput At Each Drive Port</li><li>x8 PCI Express host interface</li><li>Supports Multiple Raid Luns</li></ul></div><img src="http://ecx.images-amazon.com/images/I/21j1ugleQ3L.jpg" noproxy>