The part number **784959-01** refers to a specific hardware product manufactured by **National Instruments (NI)**. Specifically, it is the identifying part number for the **PXIe-8840 Quad-Core PXI Express Controller**. --- ### ## Product Overview: PXIe-8840 The PXIe-8840 is an embedded controller designed for PXI Express systems. It acts as the "brain" of a test, measurement, or control system, providing the processing power and I/O connectivity required to manage multiple PXI modules. ### ### Technical Specifications | Feature | Specification | | :--- | :--- | | **Processor** | Intel Core i7-5700EQ (Broadwell) | | **Cores** | Quad-Core (4 physical cores) | | **Processor Speed** | 2.6 GHz (Base) / 3.4 GHz (Turbo) | | **Memory (RAM)** | 8 GB DDR3L 1600 MHz (Upgradable) | | **Storage** | 320 GB (or larger) SATA Hard Drive | | **System Bandwidth** | Up to 8 GB/s | | **Slot Occupancy** | One 4-slot wide PXI Express peripheral slot | --- ### ### Key Connectivity & I/O The controller includes several standard PC interfaces to allow for peripheral integration and networking: * **Ethernet:** 2x 10/100/1000BASE-TX (Gigabit) ports. * **USB Ports:** 2x USB 3.0 ports and 4x USB 2.0 ports. * **Display:** 1x DisplayPort and 1x DVI-I video connectors. * **Serial:** 1x RS-232 Port. * **Triggering:** SMB trigger connector for synchronization. --- ### ### Use Cases 1. **Automated Test Equipment (ATE):** Used in manufacturing environments to run complex test sequences. 2. **Data Acquisition:** High-speed streaming of data from sensor modules to the internal hard drive. 3. **Hardware-in-the-Loop (HIL):** Simulating real-world environments for embedded software validation. --- ### ### Replacement and Lifecycle National Instruments often updates these controllers. The **784959-01** is a specific SKU that typically ships with a standard Windows operating system pre-installed. Variations of this part number (e.g., ending in -02 or -04) may indicate different OS options like Real-Time (RT) or different memory configurations.