Lenovo PM1645a 1.6TB 2.5" SAS 12Gb/s Mixed Use 1000 MB/s Hot Swappable Internal SSD

Overview

The Lenovo 4XB7A17063 is a 1.6TB solid state drive designed for enterprise servers and workstations that use a 2.5-inch SAS 12Gb/s interface. It delivers up to 1000 MB/s for both sequential reads and writes, providing a significant performance boost for environments that require fast and reliable storage. Built to handle mixed workloads, this SSD offers durability and data protection features that make it suitable for demanding applications such as online transaction processing and virtual desktop infrastructure.

Key features

• High throughput with up to 1000 MB/s sequential read and write speeds to accelerate data access and processing
• Endurance rating of three full drive writes per day, supporting continuous data updates in active environments
• End to end data protection architecture that verifies data integrity throughout transfers
• Onboard supercapacitor that preserves in-flight data during unexpected power loss, preventing data corruption
• Hot swap capability allowing drives to be added or replaced without shutting down the server, minimizing downtime
• 128 command queue depth to handle highly parallel input/output operations efficiently
• S.M.A.R.T monitoring tools provide proactive health checks to help IT staff maintain drive reliability

Key specs

• Capacity: 1.6 TB
• Form factor: 2.5 inch
• Interface: SAS 12 Gb/s
• Sequential read speed: up to 1000 MB/s
• Sequential write speed: up to 1000 MB/s
• Endurance: 3 drive writes per day
• Command queue depth: 128
• Power loss protection: built-in supercapacitor

Connectivity and compatibility

This SSD is designed to fit into existing 2.5-inch SAS 12 Gb/s bays commonly found in Lenovo ThinkSystem racks and other enterprise-grade servers. Its compatibility with standard SAS interfaces ensures it integrates smoothly into clustered databases, high-performance compute nodes, and other storage arrays without requiring changes to the storage fabric.

Performance and reliability

With a balance of speed, endurance, and data integrity, this drive supports workloads that demand consistent performance and low latency. The combination of high command queue depth and power loss protection ensures that data remains safe and accessible even under heavy parallel I/O operations or unexpected power interruptions. These features make it a dependable choice for mission-critical applications.

Ideal uses and environments

This SSD is well suited for enterprise environments that require robust storage solutions capable of handling mixed workloads. It works well in online transaction processing systems, virtual desktop pools, and active log capture scenarios where data is frequently updated. IT administrators looking for a reliable, hot-swappable drive to maintain uptime during maintenance will find this model particularly useful.