The ThinkSystem PM1643 Capacity SAS 12Gb solid-state drives (SSDs) are next-generation high-capacity SSDs suitable for a wide range of applications. The PM1643 Capacity SAS SSDs are designed for dense storage and with a 12 Gb SAS interface, these drives feature all the capacity and performance that is needed to replace large numbers of 15K rpm and 10K rpm spinning disks, and consolidate storage into tightly packed server configurations. The PM1643 SSDs are the follow-on to the PM1633a SSDs and offer significantly improved performance, both for random and sequential workloads.