... Raid5, Raid6 improves the overall computing capabilitySupport SAS,SATAII hard disks mixed insert at the same arrayTotally support Raid0/ ... support S.M.A.R.T technologySupport I2C, real-time monitor system I/O, Cache utilization, power supply, fans, hard drive, ambient ... so onSupport BBU back-up power supplySupport SAS, SATA hard drive, and support NCQ and TCQSupport DDR ECC cacheSupport different sizes ...