A multi-output supply powers several rails at once, such as a split analog supply and a logic rail. Most triple-output models pair two 30 V channels with a low-voltage third channel, and can tie the two main channels in series for 60 V or in parallel for twice the current. Check the third channel’s rating: on some it is fully adjustable, on others it is fixed at 5 V or a few preset values.
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.
Full ranking 9
- Rigol DP832#1 of 9Full 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 9Full 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 9Full 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 9Full 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 9Full 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 - NICE-POWER SPS3010-2KD Dual 30V 10A#6 of 9Full review
A cheap dual switcher for projects that need two high-current rails, or 60 V or 20 A from one box.
Amazon $199.99$199.9930 V / 10 A600 W2 - Tekpower TP3003D-3#7 of 9Full review
The cheapest way to get three linear rails on a hobby bench, if PC control is not needed.
Amazon $179.99$179.9930 V / 3 A195 W3 - GW Instek GPD-3303D#8 of 9Full review
A triple-output linear supply from a lab brand, outclassed here on price and setting resolution.
Amazon $719$71930 V / 3 A195 W3 - B&K Precision 1671A#9 of 9Full review
A basic bench supply with fixed logic rails, for classrooms and service benches that do not need PC control.
Amazon $369.53$369.5330 V / 5 A158.5 W3
