The server is best suited for intensive tasks that can benefit from up to 8x single-width GPUs or 3x double-wide GPUs. Lenovo's management software, XClarity, enables administrators to keep tabs on hardware and make specific adjustments if necessary. The Lenovo ThinkSystem SR665 V3 server also features an internal M.2 module supporting up to 2x M.2 drives and 2x external 7mm hot-swap drives for more storage or to boot the operating system. Offering up to 10x PCIe slots, the chassis has flexible expansion options all with rear access. This dual-socket, 2U platform, supports 30 different drive bay configurations in the front, middle and rear of the server and 6 different slot configurations at the rear of the server. An internal mount supports a cabled RAID adapter or HBA. There is also a dedicated slot for the OCP 3.0 mezzanine adapter. Up to 9x slots can be PCIe 5.0 and the remaining slot is reserved for PCIe 4.0.