The 11 TB NVMe SSD is part of the new 9200 ECO lineup, which also features 8 TB capacities and PCIe x4 / x8 variants. These SSDs come in a more exotic form-factor known as the U.2 that is specific to enterprise servers. Micron states that the PCIe x8 versions can perform up to 5.5 GB/s sequential reads and up to 3.5 GB/s sequential writes.
https://www.notebookcheck.net/Micron-showcases-11-TB-NVMe-PCIe-Gen-3-X8-SSDs-at-SC17.264018.0.html