A PC interface lets you log voltage and current over time and run scripted tests, such as stepping a supply through a voltage sweep or discharging a battery at a set current. Models that document SCPI commands work with common test software and Python libraries; some others use their own protocol or Modbus.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Best Programmable Bench Power Supplies: Single output
- Siglent SPD1305X#1 of 10Full review
A quiet, precise single-output linear supply for electronics benches that want PC control and remote sense. Less power per dollar than a switcher, but far cleaner output.
Amazon $328$32830 V / 5 A150 W1 - Siglent SPD1168X#2 of 10Full review
The low-voltage, higher-current sibling of the SPD1305X, for 12 V and 5 V work that needs clean, precise power.
Amazon $305$30516 V / 8 A128 W1 - OWON SPE6103#3 of 10Full review
A compact, programmable 60 V switching supply that gives a lot of range for the money on a crowded bench.
Amazon $139.99$139.9960 V / 10 A300 W1 - OWON SPE3051#4 of 10Full review
A small programmable 30 V, 5 A supply for electronics hobbyists who want PC control in a compact box.
Amazon $119.99$119.9930 V / 5 A150 W1 - OWON SPE8105#5 of 10Full review
A compact high-voltage switcher for e-bike, solar and battery projects that need more than 60 V.
Amazon $219$21980 V / 10 A500 W1 - B&K Precision 1687B#6 of 10Full review
A durable name-brand switching supply for service benches and 24 V equipment, with a warranty the import brands do not offer.
Amazon $408$40836 V / 10 A360 W1 - Tekpower TP3005P#7 of 10Full review
A programmable linear 30 V, 5 A supply for hobbyists who want PC control without paying lab-brand prices.
Amazon $129.99$129.9930 V / 5 A150 W1 - Korad KA3005P#8 of 10Full review
A low-cost programmable linear supply for hobby and repair benches that want PC control on a budget.
Amazon $155$15530 V / 5 A150 W1 - Riden RD6018#9 of 10Full review
A high-power buck-converter supply for battery charging, motors and LED work where watts per dollar matter more than clean output.
Amazon $269$26960 V / 18 A1,080 W1 - B&K Precision 1696B#10 of 10Full review
A programmable 20 V supply for production and test rigs that chain several units on RS485.
Amazon $546.12$546.1220 V / 10 A200 W1
Best Programmable Bench Power Supplies: Multi-output
- Rigol DP832#1 of 6Full review
A popular, quiet triple-output linear supply for electronics labs; the default pick for mixed analog and digital work.
Amazon $449$44930 V / 3 A195 W3 - Rigol DP932E#2 of 6Full review
A newer Rigol triple-output linear supply with isolated channels and LAN built in, for labs that script tests.
Amazon $499$49930 V / 3 A198 W3 - Siglent SPD3303X-E#3 of 6Full review
A quiet triple-output linear supply for electronics labs that power analog and logic rails at once.
Amazon $459$45932 V / 3.2 A220 W3 - GW Instek GPP-4323#4 of 6Full review
A four-channel programmable supply for labs that need many precise rails and automated tests in one unit.
Amazon $897.86$897.8632 V / 3 A212 W4 - Siglent SPD3303C#5 of 6Full review
The lower-cost triple-output Siglent, for benches that want three linear rails and USB control.
Amazon $344$34432 V / 3.2 A220 W3 - GW Instek GPD-3303D#6 of 6Full review
A triple-output linear supply from a lab brand, outclassed here on price and setting resolution.
Amazon $719$71930 V / 3 A195 W3
Best Programmable Bench Power Supplies: Electronic loads
- Siglent SDL1020X-E#1 of 5Full review
A programmable load with every interface built in, for labs that automate power-supply and battery tests.
Amazon $574$574150 V / 30 A200 W1 - Rigol DL3021#2 of 5Full review
A well-supported programmable load for testing power supplies and batteries in an electronics lab.
Amazon $549$549150 V / 40 A200 W1 - Korad KEL2010#3 of 5Full review
A 300 W programmable load with fine low-range resolution, for battery and supply testing past 200 W.
Amazon $525$525150 V / 40 A300 W1 - OWON OEL1530#4 of 5Full review
A low-cost 300 W programmable load for battery capacity and power-supply testing on a hobby bench.
Amazon $215.99$215.99150 V / 30 A300 W1 - OWON OEL8511#5 of 5Full review
A programmable 200 W load for benches that may later gang several units on RS485.
Amazon $399$399150 V / 20 A200 W1
