The National Instruments PXI-6508, part number 777598-01, is a high-performance 96-channel digital I/O module designed for use in PXI and CompactPCI systems. Featuring 2.5 mA, 5V TTL/CMOS signaling, the PXI-6508 utilizes four 24-bit programmable peripheral interfaces (PPIs), each divided into three 8-bit ports to facilitate versatile data acquisition. The module is equipped with a 100-pin female D-type I/O connector and supports transfer rates of up to 50 Kbytes/s when used in conjunction with NI-DAQ Software. This device is fully software-configurable, compliant with the PXI specification (Rev. 1.0), and capable of operating in both bidirectional and unidirectional modes. The PXI-6508 allows users to define the power-up state of each line, connecting to a 100 kΩ pull-up resistor, while facilitating options for onboard pull-up resistors in applications that require such features. With a digital input voltage range of -0.3 V to 5.3 V and an output voltage range from 0 V to 5 V, this module is well-suited for various industrial automation tasks. It operates on the NIDAQmx driver software, ensuring compatibility with development environments such as LabVIEW, LabWindows/CVI, and Measurement Studio. The physical dimensions of the PXI-6508 are 6.9 x 4.2 inches, and it weighs 5.2 ounces. Designed to function effectively within an operating temperature range of 0 to 55 °C and a storage range of -20 to 70 °C, this module is a reliable choice for demanding applications. While the PXI-6508 has transitioned to the NI Maintenance phase as of March 31, 2022, it remains available through Apex Waves. For pricing information, please contact a sales representative.