Lenovo ThinkSystem 940-8i - Storage controller (RAID) - 8 Channel - SATA / SAS 12Gb/s low profile - 12 Gbit/s - RAID 0, 1, 5, 6, 10, 50, JBOD, 60 - PCIe 4.0 x8 - for ThinkSystem SR645 7D2X, 7D2Y