Description and Features
MXI-Express Gen-3 x16 extends PCI Express communication over a cable up to 3 m. With
MXI-Express Gen-3 x16, you can do the following:
• Control a PXI Express or CompactPCI Express backplane with a PCI Express-based PC.
• Physically separate the measurement or automation system from a host PC.
• Control multiple PXI Express or CompactPCI Express chassis with a single PCI Express-
based PC or PXI Express embedded controller. (The PXIe-8398 and PXIe-8399
controllers also can control multiple chassis in a daisy-chain configuration.)
The following table lists the models and their features for comparison.
Table 2. Feature Comparison of Available MXI-Express Gen-3 x16 Interfaces
Model Slot Type Number of Lanes Cable Support
PCIe-8398 PCI Express Gen-3 x16 16 MXI-Express x8
PXIe-8394 PXI Express Peripheral
Expansion Module
16 MXI-Express x8,
MXI-Express x4
PXIe-8398 PXI Express Controller 16 MXI-Express x8,
MXI-Express x4
PXIe-8399 PXI Express Controller
With One Expansion Slot
32 MXI-Express x8,
MXI-Express x4
Tip For optimum link widths and performance, use the PXIe-8394, PXIe-8398, and
PXIe-8399 in chassis that support Gen 3 links.
MXI-Express Gen-3 x16 User Manual | © National Instruments | 3