PXIe-8881

The PXIe-8881 is an Intel Xeon 8-Core embedded controller for PXI Express systems, You can use this PXI Controller for processor-intensive RF, modular instrumentation, and data acquisition applications. The PXIe‑8881 includes two 10/100/1000BASE‑TX (Gigabit) Ethernet ports, two USB 3.0 ports, four USB 2.0 ports, as well as an integrated hard drive and other peripheral I/O, such as two Thunderbolt 3 ports. Additionally, the PXIe‑8881 is available with 16 GB, 32 GB, or 64 GB memory based on your processor core selection. Thunderbolt is a trademark of Intel Corporation or its subsidiaries in the U.S. and/or other countries.

1. Key Technical Specifications

2. Detailed Technical Breakdown

The Power of Intel Xeon

The PXIe-8881’s Intel Xeon W-2245 processor provides a massive performance ceiling. With 8 cores and 16 threads, it excels at parallel processing. This is critical when running multiple LabVIEW loops or handling high-speed digital signal processing (DSP) in real-time. The Xeon architecture also offers enhanced reliability and data integrity features compared to the Core i7 line, making it suitable for 24/7 industrial deployments.

Massive 24 GB/s System Throughput

Utilizing a PCI Express Gen 3 x16 or x24 system link (depending on the chassis), the PXIe-8881 provides a system bandwidth of up to 24 GB/s. This “wide pipe” ensures that high-speed instruments, such as 5 GS/s digitizers or wideband Vector Signal Transceivers (VSTs), can stream data to the CPU or peer-to-peer without causing a bottleneck.

Removable Storage and Expansion

Security and maintenance are simplified with a front-panel removable NVMe SSD. This allows for easy declassification of sensitive data in defense environments or quick replacement for maintenance. The integrated Thunderbolt 3 port further expands the system’s capabilities, allowing for high-speed connections to external RAID storage arrays or additional displays without using up PXI slots.

3. Usage and Application Scenarios

Wideband RF Record and Playback

The PXIe-8881 is the core of high-end RF streaming systems. Its Xeon processor can handle the real-time mathematics required for modulation/demodulation while simultaneously streaming gigabytes of data to a storage array via Thunderbolt 3 or a PXIe-8267 RAID module.

Multi-Site Semiconductor Validation

In semiconductor testing, the 8881 acts as a central coordinator for dozens of SMUs and digital I/O modules. Its large cache and high memory bandwidth allow it to process massive test vectors and log characterization data from multiple sites in parallel, significantly reducing total test time.

High-Fidelity Hardware-in-the-Loop (HIL)

For aerospace or automotive HIL, where deterministic performance is mandatory, the PXIe-8881 running LabVIEW Real-Time provides the computational “heft” to run high-fidelity physical models (e.g., a jet engine or electric drivetrain) with sub-millisecond loop rates.

4. Product Comparison and Recommendations

• NI PXIe-8881 (The Workstation Leader): 8-core Xeon, 24 GB/s. Best for server-grade reliability and the most demanding DSP/streaming tasks.

• NI PXIe-8842 (The Modern Speedster): 11th Gen i7, PCIe Gen 4. Best for systems that specifically require Gen 4 slot speeds (up to 8 GB/s per slot) in a Gen 4 chassis.

• NI PXIe-8880 (The Legacy Xeon): Older Xeon version. A reliable choice for existing systems but generally superseded by the 8881 for new builds.

• NI PXIe-8840 (The Balanced Choice): 9th Gen i7. Best for standard ATE applications where Xeon-level processing is not required.

Summary

The NI PXIe-8881 is the gold standard for high-performance PXI Express control. By bringing server-class Xeon processing and massive 24 GB/s bandwidth to the PXI platform, it enables the next generation of wideband measurement and high-parallelism testing. We offer expert technical support for system integration and support for project pricing for large-scale laboratory and production deployments.