Internal Connectors: 8 x SATA 6.0Gb/s RAID: RAID 1/5/6/10/50/60 Cache Memory: 256MB Features: Supports data redundancy LSI SAS2108 ROC technology True MD2 form factor for low-profile height and half length adapter slots Includes a connector for optional hardware-based keys that easily plug in to unlock advanced software algorithms designed to improve performance and enhance data protection Parts: 1 year limited Labor: 1 year limited