1,With LSI SAS2208 dual-core master chip, the performance is stable and powerful. 2,With eight internal SATAandSAS ports and two Mini-SAS SFF-8087 x4 connectors. 3,Powerful performance with a maximum read rate of 2,875MB or s and a maximum write rate of 1,850MB or s. 4,6Gb or s throughput per port, 512MB DDRIII 1333MHz cache. Up to 128 SATA and or or SAS devices can be connected. 5,Supports automatic recovery when reconstruction and reconstruction. Support for online capacity expansion (OCE). Support for online RAID level migration (RLM) 1 x Disk Array Card Item Type: Disk Array CardProduct Name: LSI MegaRAID 9272-8I SAS RAID 5 6 512 Cache Array CardEight internal SATAandSAS portsTwo Mini-SAS SFF-8087 x4 connectors6Gb or s throughput per portLSISAS2208 Dual Core ROC o 800MHz PowerPCSmall MD2 ( 6.6 X 2.536inch)X8 PCI Express 2.0 host interface512MB DDRIII 1333MHz CacheOptional battery replacement unit (LSIiBBU09)Connect up to 128 SATA and or or SAS devicesRAID level: 5, 6Automatic recovery when rebuildingAutomatic recovery when remodelingOnline Capacity Expansion (OCE)Online RAID Level Migration (RLM)SSD support with SSD GuardTMGlobal and dedicated hot spare with recoverable hot spare support Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.