The HPE Smart Array P408e-p SR Gen 10 Controller, supporting 12 Gb/s SAS & PCIe 3.0, is ideal for maximizing performance on externally attached drives while supporting advanced RAID levels with 4 GB flash-backed write cache (FBWC). This controller operates in Mixed Mode which combines RAID & HBA operations simultaneously. It has eight external SAS lanes, allowing connection to externally attached SAS or SATA drives, and provides enterprise-class storage performance, reliability, security & efficiency needed to address your evolving data storage needs. This controller offers enhanced security by encrypting data-at-rest on any drive with HPE Smart Array SR Secure Encryption.