Siglent SPD3303C
#5 in Multi-outputFull review
The lower-cost triple-output Siglent, for benches that want three linear rails and USB control.
Amazon $344$344
The Siglent SPD3303C is the better bench power supply overall, rated 3.4 to 2.9. The NICE-POWER SPS3010-2KD Dual 30V 10A wins on value and resolution. The NICE-POWER SPS3010-2KD Dual 30V 10A costs $144.01 less ($199.99 vs $344).
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.
NICE-POWER SPS3010-2KD Dual 30V 10A
#6 in Multi-outputFull 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$199.99
Which should you buy?
- Choose the NICE-POWER SPS3010-2KD Dual 30V 10A for value ($0.33 per watt ($199.99, 600 W rated) vs $1.56 per watt ($344, 220 W rated)) and resolution (10 mV / 1 mA readback resolution vs 10 mV / 10 mA setting resolution).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every multi-output bench power supply; a clear win is highlighted. How we rank explains each one.
| Factor weight | Siglent SPD3303C | NICE-POWER SPS3010-2KD Dual 30V 10A |
|---|---|---|
| Overall rating | 3.4/5 | 2.9/5 |
| Value 25% | 33 $1.56 per watt ($344, 220 W rated) | 77 $0.33 per watt ($199.99, 600 W rated) |
| Output quality 20% | 71 1 mVrms ripple and noise | 0 ripple and noise not published, scored as the worst |
| Resolution 15% | 25 10 mV / 10 mA setting resolution | 50 10 mV / 1 mA readback resolution |
| PC control 15% | 80 USB with SCPI | 50 PC control not published (neutral score used) |
| Protection & features 10% | 20 stored setups | 50 protection and features not published (neutral score used) |
| Warranty 15% | 100 3-year warranty | 0 warranty not published, scored as none |
Specifications
| Siglent SPD3303C | NICE-POWER SPS3010-2KD Dual 30V 10A | |
|---|---|---|
| Output | ||
| Type | Power supply | Power supply |
| Regulation | Linear | Switching |
| Channels | 3 | 2 |
| Channel ratings | 32 V/3.2 A, 32 V/3.2 A, 2.5/3.3/5 V/3.2 A | 30 V/10 A, 30 V/10 A |
| Max voltage | 32 V | 30 V |
| Max current | 3.2 A | 10 A |
| Rated power | 220 W | 600 W |
| Ripple and noise | 1 mVrms | - |
| Precision | ||
| Setting resolution | 10 mV / 10 mA | - |
| Readback resolution | 10 mV / 10 mA | 10 mV / 1 mA |
| Control | ||
| PC interfaces | USB | - |
| SCPI | Yes | - |
| Stored setups | 5 | - |
| Build | ||
| Weight | 16.5 lb | 4.4 lb |
| Warranty | 3 years | - |