How can a PCIe x1 controller supply up to 4 SATA devices? 4 x SSD (SATA3) = 2.4GBit/s, even with "mixed" operation with HDD (1/3 to 1/2 of an SSD) there are throughput volumes that - at least theoretically - a "x1" controller can hardly cope with: https://www.elektronik-kompendium.de/sites/com/0904051.htm, even if the PCIe V3 is mastered... Have I misunderstood something? In any case, I'll be replacing my "cheap controller" soon...