HP 631674-B21 Controller

HPE Smart Array P421 2GB FBWC Controller (Part Number: 631674-B21) — is an enterprise-class external SAS RAID controller providing professional-level reliability and performance for HPE ProLiant Gen8 servers. It features two external x4 mini-SAS ports, enabling seamless connectivity to external storage enclosures. With 2GB of Flash-Backed Write Cache (FBWC), the P421 protects data against power loss while accelerating application performance. The PCIe 3.0 interface ensures high throughput for demanding workloads like database management and data warehousing.

Key Specifications:

• Data Transfer Rate: 6Gb/s SAS per lane.

• Cache: 2GB FBWC (Non-volatile).

• External Connectors: 2 x Mini-SAS SFF-8088 ports.

• RAID Support: 0, 1, 1+0, 5, 50, 6, 60.

• Host Interface: PCIe 3.0 x8.

• Advanced Features: Capacity Expansion, Online RAID Level Migration, Drive Erase.