PXIe, 18-Slot (9 PXI Slots, 4 Hybrid Slots, 3 PXI Express Slots, 1 PXI Express System Timing Slot), DC Power Supply, Up to 3 GB/s PXI Chassis—The PXIe‑1066DC adds high-availability features to the PXI Express platform to maximize system uptime. Built on the PXIe‑1065 backplane architecture, the PXIe‑1066DC incorporates hot-swappable, redundant DC power supplies as well as hot-swappable, front-accessible, redundant cooling fans. These high-availability features improve the mean time between failure (MTBF) and mean time to repair (MTTR) of the PXI system.