Lenovo ThinkSystem ER3 480GB M.2 2280 SATA 6Gb/s Read Intensive SSD

The Lenovo 4XB7A90049 is a 480GB solid state drive designed for ThinkSystem servers. It slots into an M.2 2280 connector and uses a SATA 6Gb/s interface, giving administrators a straightforward way to add flash storage without occupying a front drive bay.

With 3D TLC NAND at its core, the drive reaches up to 520 MB/s for both sequential reads and writes. It also handles small, random operations efficiently, delivering 90,000 IOPS for 4 KB reads and 15,000 IOPS for 4 KB writes. This performance profile makes it well suited for boot volumes, operating system images, log files, and other read heavy tasks that depend on low latency.

The ER3 designation marks it as a read intensive model, tuned for predictable performance and reliability. It carries an endurance rating of 1 drive write per day and 870 terabytes written. Power loss protection safeguards data during unexpected outages, thermal throttling keeps temperatures in check under sustained load, and end to end data protection helps maintain data integrity.

System builders can use this M.2 option to free up hot-swappable bays for large capacity drives, keeping the operating system separate from application data. It also fits naturally in edge appliances, virtualized hosts, and lab environments where consistent read performance matters more than very high write endurance.

• 480GB capacity in an M.2 2280 form factor with a SATA 6Gb/s interface
• Sequential performance up to 520 MB/s for reads and writes
• 90,000 IOPS random 4 KB read and 15,000 IOPS random 4 KB write capability
• Endurance rated at 1 drive write per day and 870 TB written
• Includes power loss protection, thermal throttling, and end to end data protection
• Ideal for ThinkSystem server boot volumes and other read intensive workloads