Storage interface sas sata o 8 physical links across 2 x4 external ports o 12gb s sas, 6gb s sata technology o mix-and-match sas and sata drives to the same controller o support for sas tape drives, sas tape autoloaders and sas tape libraries 4 gibytes flash-backed write cache fbwc pci express gen3 x8 link raid 0, 1, 10, 5, 50, 6, 60, 10 adm advanced data mirroring raid or hba mode legacy and uefi boot operation up to 200 physical drives up to 64 logical drives up to 8 daisy chained hpe d3600 disk enclosure and hpe d3700 disk enclosure in dual domain configuration hpe smartcache optional license hpe secure encryption optional license hpe ssd smart path rapid parity initialization rpi rapid rebuild drive erase performance optimization-degraded reads and read coalescing power efficiency seamless upgrades to and from other hpe smart array controllers recovery rom to protect against controller rom corruption low-profile standard pci express plug-in card o dimension excluding bracket : 7.5 In x 9.5 In x 2.25 In 19.05 Cm x 24.13 Cm x 5.72 Cm the hpe smart array p441 controller is a low- profile, pcie3 x8, 12gb s serial attached scsi sas raid controller that provides enterprise-class storage performance, increased external scalability, and data protection for select hpe proliant gen9 rack and tower servers, and apollo systems. It features eight external physical links and delivers increased server uptime by providing advanced storage functionality, including online raid level mi...