The ServeRAID M5210 and M5210e SAS/SATA Controllers are high performance 12 Gb SAS controllers for internal disk storage. They are part of the ServeRAID M Series family that offers a complete server storage solution consisting of RAID controllers, cache/flash modules, energy packs, and software feature upgrades in an ultra-flexible offerings structure. This product guide provides essential presales information to understand the ServeRAID M5210/M5210e offerings and their key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the ServeRAID M5210 and consider its use in IT solutions. The ServeRAID M5210 and M5210e SAS/SATA Controllers are high performance 12 Gb SAS controllers for internal disk storage. They are part of the ServeRAID M Series family that offers a complete server storage solution consisting of RAID controllers, cache/flash modules, energy packs, and software feature upgrades in an ultra-flexible offerings structure. These products are optimized to deliver the performance that is demanded by the ever-growing I/O requirements of today's enterprises. The M5210 is a low profile PCIe adapter, and the M5210e is integrated in servers such as the x3750 M4 and x3650 M4 HD. The two controllers share a common set of upgrades, simplifying inventory management. The following figure shows the ServeRAID M5210 Controller with an optional cache installed.