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Lenovo lists 4XB7A82291 (feature code BQ22) as the ThinkSystem 2.5-inch 5400 MAX 1.92TB Mixed Use SATA 6Gb hot-swap SSD. It is a self-encrypting drive (TCG Enterprise) from the Micron 5400 MAX platform, which Lenovo sells in mixed-use capacities of 480GB to 3.84TB.
The 1.92TB drive keeps the 5.0 drive-writes-per-day rating of the smaller models, which works out to 17,520 TB written. It is rated for 94,000 random read IOPS and 63,000 random write IOPS at 4 KB, with 540 MBps sequential read and 520 MBps sequential write. Sequential latency is 170 microseconds reading and 120 writing, typical power is 3.0 W reading and 3.6 W writing, and the MTTF is 3,000,000 hours.
The 960GB model is rated at 8,760 TB written, and the 3.84TB model at 3.4 drive writes per day and 23,827 TB written.
See more drives in the Lenovo SSDs. A read-intensive 1.92TB drive from the 5400 family is the ThinkSystem 2.5-inch 5400 PRO 1.92TB Read Intensive SATA SSD, 4XB7A82261.
| Option part number | 4XB7A82291 |
| Feature code | BQ22 |
| Description | ThinkSystem 2.5" 5400 MAX 1.92TB Mixed Use SATA 6Gb HS SSD |
| Capacity | 1.92TB |
| Interface | 6 Gbps SATA |
| Form factor | 2.5-inch hot-swap |
| SED encryption | TCG Enterprise |
| Endurance | 5.0 DWPD, 17,520 TB written |
| 4 KB random IOPS | 94,000 read / 63,000 write |
| Sequential rate | 540 MBps read / 520 MBps write |
| Typical power | 3.0 W read / 3.6 W write |
| MTTF | 3,000,000 hours |