PXI High-Density Precision Programmable Resistor Module (Model 40-297) and PCI High-Density Precision Programmable Resistor Card (Model 50-297) offer users choice of resistor channel count from 3–18 and resolution from 0.125–2 Ω. Basic accuracy is 0.2% ± resolution. All resistors are programmed by use of resistance calls to software driver, which uses calibration data from module to provide best setting available to user. Drivers support all popular Windows versions.