HPE 400GB 2.5" SAS 12Gb/s WI SC SSD

The HPE P21125-B21 is a 400GB solid state drive that mounts in a 2.5 inch bay and connects through a 12 Gb/s SAS interface. It arrives pre-installed in an HPE Smart Carrier, so you can hot-swap it in or out of a ProLiant server without powering down the system.

This model is tuned for write intensive workloads and can push up to 120 000 write IOPS, 205 000 read IOPS, and a sustained transfer rate of 1.2 GB per second. With an endurance rating of 10 full drive writes per day, it handles constant logging, database updates, and caching activity without wearing out prematurely.

Real-world scenarios include transactional databases that process thousands of updates per second, real-time analytics that rewrite large working sets, and virtualization hosts that consolidate heavy write traffic from many guest machines. In each case, the drive delivers low latency and consistent throughput so applications keep their expected responsiveness.

The Smart Carrier adds tool-less installation, activity and status LEDs, and a solid latch that prevents accidental removal. Power draw is just 6.47 watts, helping dense server racks stay within thermal limits. A three-year limited warranty from HPE provides additional confidence for long-term deployments.

• 400GB storage capacity
• Fits standard 2.5 inch drive bays
• SAS 12 Gb/s interface
• Up to 120 000 write IOPS and 205 000 read IOPS
• 1.2 GB/s sustained data transfer rate
• Endurance of 10 drive writes per day
• Hot-swap Smart Carrier design
• Compatible with HPE ProLiant Gen8, Gen9, and Gen10 servers
• Typical power usage of 6.47 watts
• Three-year limited warranty