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    Smart Array P420 2GB FBWC 6Gb 2-ports Int SAS Controller     631671-B21

The SA-P420 Controller supports up to 60 drives depending on the server implementation

6Gb/s SAS technology delivers high performance and data bandwidth and contains full compatibility with 6Gb/s SATA technology

Standard on the P440 are RAID 6, RAID 60, RAID 1 ADM, Capacity Expansion, mirror split, recombine, and rollback in Online Mode, Drive Erase, Performance Optimization-Degraded Reads and Read Coalescing, Move/Delete any individual LUNS