Keithley has added three instruments to its Series 2600B System SourceMeter SMU instrument line. The Models 2604B (40 V, 100 fA), 2614B (200 V, 100 fA), and 2634B (200 V, 1 fA) are optimized for benchtop research, product development, student labs, and other settings where tightly integrated operation and high accuracy are important, but leading-edge, system-level test automation is not. The new dual-channel models are compatible with test code developed for the company's Model 2400 SourceMeter SMU instrument and combine the capabilities of a precision power supply, true current source, 6-1/2-digit multimeter, arbitrary waveform generator, pulse generator, and electronic load in one tightly integrated instrument. The instruments also offer USB 2.0 connectivity and embedded, Java-based test software that supports true plug-and-play I-V characterization through any web browser on any computer. The Series 2600B line builds upon the capabilities of its predecessor, the Series 2600A line, with which it is fully backward compatible. Available now, pricing for benchtop Models 2604B and 2614B is $7,040, and $11,000 for Model 2634B.