Two M.2 NVMe slots (though one may be mislabeled), an M.2 Wi-Fi slot, and two PCIe x16 slots. Pro Upgrades: active VRM cooling
The Machinist X99 MR9A Pro BIOS is designed to provide users with a high degree of control over their system's settings. Some of the exclusive BIOS features include:
While Xeons are locked, the BIOS offers BCLK adjustments from 100–200MHz, PCIe strap tuning, and core ratio limiting. A hidden “Turbo Unlock” feature forces maximum multipliers on v3 Xeons (e.g., E5‑2680 v4 all‑core 3.3GHz).
