Each model of 9130B Series offers different configuration of variable output voltage and current on 2 channels: 0–30 V, 0–3 A (9130B); 0–30 V, 0–6 A (9131B); and 0–60 V, 0–3 A (9132B). Third channel output is rated 0–5 V, 0–3 A for all models, and outputs can be adjusted independently or combined in series or parallel to output higher voltage or current. With 19 in. half-rack form factor, series also offers constant voltage and constant current modes, tracking mode, and various interfaces.