---
product_id: 32266039
title: "Siglent Technologies SPD3303X-E Triple Output Power Supply"
brand: "siglent"
price: "€ 1076.80"
currency: EUR
in_stock: true
reviews_count: 9
category: "Siglent"
url: https://www.desertcart.hr/products/32266039-siglent-technologies-spd3303x-e-triple-output-power-supply
store_origin: HR
region: Croatia
---

# 3 independent outputs up to 32V/3.2A Precision 10mV/10mA resolution with timing & trending graphs 220W total power capacity Siglent Technologies SPD3303X-E Triple Output Power Supply

**Brand:** siglent
**Price:** € 1076.80
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your innovation with precision and control — don’t get left in the dark!

## Quick Answers

- **What is this?** Siglent Technologies SPD3303X-E Triple Output Power Supply by siglent
- **How much does it cost?** € 1076.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/32266039-siglent-technologies-spd3303x-e-triple-output-power-supply)

## Best For

- siglent enthusiasts

## Why This Product

- Trusted siglent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High Power Density:** Deliver up to 220W total power to fuel your demanding lab setups
- • **Versatile Output Modes:** Switch seamlessly between independent, series (up to 60V), and parallel modes for ultimate flexibility
- • **Smart Thermal Management:** Intelligent temperature-controlled fan keeps noise low and performance high
- • **Triple Independent Power Control:** Manage 3 isolated outputs with precision for complex projects
- • **Ultra-Fine Voltage & Current Resolution:** Dial in settings with 10mV and 10mA accuracy for sensitive electronics

## Overview

The Siglent SPD3303X-E is a professional-grade triple output linear power supply offering 3 isolated channels with up to 32V/3.2A each and a total 220W output. Featuring ultra-fine 10mV/10mA resolution, intelligent fan control for low noise, and versatile output modes including series and parallel configurations, it’s engineered for demanding lab and prototype environments. Supported by Easy Power PC software and SCPI commands, it integrates seamlessly into modern workflows, making it a top choice for engineers and tech professionals seeking reliable, precise power delivery.

## Description

The Siglent SPD3303X-E Power Supply contains three independent power supplies in one unit. As a true linear supply, output noise and regulation are excellent. With its intelligent temperature-controlled fan, noise is reduced. Voltage resolution is 10mV / 10mA. The SPD3303X-E Power Supply comes with Easy Power PC software, supports SCPI commands and like all Siglent instruments, has an available LabVIEW driver.

Review: Quality programmable DC power supply with a great value - Product: Siglent SPD3303X-E Programmable DC Power Supply Use: for work lab setup at my house (work from home) Purchased: July 2022 (2-3 months of usage at the time of this review) Background/Usage: I am an engineer with 30+ years of post graduate experience with a focus of 25+ years in the design and development of medical imaging equipment. This is the 3rd piece of Siglent equipment I own, along with the Siglent SDG6022X Arbitrary Waveform Generator and the Siglent SDS2204X Plus Digital Storage Oscilloscope (many additional options purchased). My overall impression is that I like this power supply. I have been exposed to and used many other manufacture equipment from many of the top brands. Since I purchased this using my "dime", I tend to balance form, function, quality, price and several other factors. Value: I could have spent a lot less and gotten a lot less features and quality. For me, quality was a heavier factor that you just are not going to get with those sub $100 supplies. Quality: The build quality is very good. A bit noisier than what I personally like, however, not as noisy as some very expensive and most cheap counter parts. With this being in a lab bench setup with several other pieces of equipment, noise is noise. Screen display is sufficient for what is needed, showing what one needs to see. Buttons and knobs are more than sufficient, decent quality. My one "ding" (CON) is the banana plugs feel a bit cheaper than everything else on this piece of equipment and are non-standard size for a BNC dual banana plug adapter. This is a big oversight on Siglent's part and a common point of complaint. I overlook this and can easily work around it. Features: For the value, this is feature rich. I know the specs say this is 3 output, and technically it is... however, only 2 are IMHO independently controlled, those being the 32 volt @ 3.2 amp outputs. The 3rd one is a selectable 2.5/3.3/5.0 volts @ 3.2 amp output. So yes, technically 3. I do like and use the 3.3 volt or 5.0 volt output for small prototype boards. Adding a 12.0 volt selection would have been a win IMHO... but so be it. The 2 independent programmable outputs can be put into series for up to a 60 volt @ 6.4 amp max output. Something I won't need but nice. I utilize the minimum resolution of 1 mV and 1 mA setting ability. Although many may not need this fine resolution, it is very necessary in my line of work dealing with very small signals. I am happy with this supply and would recommend it.
Review: New hardware version shipping now - There are some good reviews of the features and performance of this supply, so I will just mention that Siglent appears to now be shipping a new version of hardware (and firmware) with the SPD3303X-E. Presumably this corrects the issues reported in some recent reviews with DOA or short-lived units that reboot continuously. I just received a new unit and the calibration date is Dec. 2023. The unit shows it has V6.2 hardware and a firmware release that is not even available for download yet on Siglent's website (as of March 2024). So I am going to ASSUME based on this that the issues reported with the older versions has been fixed. So far the unit has operated flawlessly, and the two main (32V) outputs are accurate to better than the stated resolution. The third output is very limited and I don't really see myself using it, but if you need a logic source it should work for that. The UI is perhaps a little unusual but in my opinion, it's very simple to learn and operate. I've used the series-output function to power 48V devices and it works well for that (note that it is limited to 60V in series, not the 64V that you might expect). I have not had a use for the parallel (higher current) function yet. I appreciate the variable-speed fan. With the outputs off and the unit powered on, the fan does not operate. It starts to spool up at around 30-40W of output, but it's not until you get above 50% of rated power that the fan noise becomes what I would describe as noticeable. This is replacing an older single-output linear supply that had very noticeable fan noise even at idle output, so I can live with the fan on this one. I haven't done anything fancy with it yet like control it remotely or save/recall setups, and not sure I'll need to as I'm not an engineer, I'm a telecom technician. It's pretty heavy, but all good linear supplies are. The leads, while decent and tight-fitting in the sockets, are only 1M in length so you'll need to be closer to the supply to use them, or you can do what I did and buy some 5- or 6-foot test leads on desertcart (they're out there). So far I'm pleased with this unit.

## Features

- 3 Independent Controlled And Isolated Outputs
- 32V/3. 2A X 2, 2. 5V/3. 3V/5V/3. 2A X 1, Total Power: 220W
- Output Modes: Independent, Series, Parallel
- Timing Output Function.Trending Graphs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01410O424 |
| Best Sellers Rank | #181 in Computer Power Supplies |
| Brand | Siglent |
| Customer Reviews | 4.6 4.6 out of 5 stars (382) |
| Date First Available | August 18, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 16 x 14 x 11 inches |
| Item Weight | 17.6 pounds |
| Item model number | SPD3303X-E |
| Manufacturer | Siglent Technologies |
| Power Source | See product details |
| Product Dimensions | 16 x 14 x 11 inches |
| Series | SPD3303X-E |

## Product Details

- **Brand:** Siglent
- **Compatible Devices:** Personal Computer
- **Connector Type:** usb
- **Cooling Method:** Air
- **Form Factor:** Tower
- **Item Weight:** 17.6 Pounds
- **Item dimensions L x W x H:** 16 x 14 x 11 inches
- **Model Name:** SPD3303X-E
- **Output Wattage:** 220
- **Wattage:** 220 watts

## Images

![Siglent Technologies SPD3303X-E Triple Output Power Supply - Image 1](https://m.media-amazon.com/images/I/71jTgranVUL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Will this power the flux capacitor?**
A: Unfortunately, not nearly enough power. At 300W, we would need 4 million SPD3303X-Es to reach the 1.2 GW needed to power the original flux capacitor as well as 4 million power cords, 4 million outlets, etc.. it would be a bit of a challenge :)

- Jason, SIGLENT NA

**Q: does it have a current limiting feature?**
A: Yes, the two main outputs each have a programmable current limit with the same fine granularity as voltage setting. The third 3.3/5V output I think is a fixed limit.

**Q: How does it behave when powered up from the ac input?  does it begin working with last settings, or must the soft power button be pressed to start?**
A: This has a hard power switch, you can tell by looking at the power button the line in the middle does not touch the circle. when you power it up, your last settings used will still be there but it will not be enabled. Hope this helps.

**Q: Can you adjust the tree outputs?**
A: I assume you meant three instead of tree. However, channel 1 & 2 (0-32 volts)are adjustable. The three outputs of 2.5, 3.3, and 5 volts @ 3.2 amps are fixed and selectable by a slide switch. A comprehensive user manual is available for this power supply that details all the features. Very happy with mine!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality programmable DC power supply with a great value
*by T***S on October 5, 2022*

Product: Siglent SPD3303X-E Programmable DC Power Supply Use: for work lab setup at my house (work from home) Purchased: July 2022 (2-3 months of usage at the time of this review) Background/Usage: I am an engineer with 30+ years of post graduate experience with a focus of 25+ years in the design and development of medical imaging equipment. This is the 3rd piece of Siglent equipment I own, along with the Siglent SDG6022X Arbitrary Waveform Generator and the Siglent SDS2204X Plus Digital Storage Oscilloscope (many additional options purchased). My overall impression is that I like this power supply. I have been exposed to and used many other manufacture equipment from many of the top brands. Since I purchased this using my "dime", I tend to balance form, function, quality, price and several other factors. Value: I could have spent a lot less and gotten a lot less features and quality. For me, quality was a heavier factor that you just are not going to get with those sub $100 supplies. Quality: The build quality is very good. A bit noisier than what I personally like, however, not as noisy as some very expensive and most cheap counter parts. With this being in a lab bench setup with several other pieces of equipment, noise is noise. Screen display is sufficient for what is needed, showing what one needs to see. Buttons and knobs are more than sufficient, decent quality. My one "ding" (CON) is the banana plugs feel a bit cheaper than everything else on this piece of equipment and are non-standard size for a BNC dual banana plug adapter. This is a big oversight on Siglent's part and a common point of complaint. I overlook this and can easily work around it. Features: For the value, this is feature rich. I know the specs say this is 3 output, and technically it is... however, only 2 are IMHO independently controlled, those being the 32 volt @ 3.2 amp outputs. The 3rd one is a selectable 2.5/3.3/5.0 volts @ 3.2 amp output. So yes, technically 3. I do like and use the 3.3 volt or 5.0 volt output for small prototype boards. Adding a 12.0 volt selection would have been a win IMHO... but so be it. The 2 independent programmable outputs can be put into series for up to a 60 volt @ 6.4 amp max output. Something I won't need but nice. I utilize the minimum resolution of 1 mV and 1 mA setting ability. Although many may not need this fine resolution, it is very necessary in my line of work dealing with very small signals. I am happy with this supply and would recommend it.

### ⭐⭐⭐⭐⭐ New hardware version shipping now
*by M***. on March 14, 2024*

There are some good reviews of the features and performance of this supply, so I will just mention that Siglent appears to now be shipping a new version of hardware (and firmware) with the SPD3303X-E. Presumably this corrects the issues reported in some recent reviews with DOA or short-lived units that reboot continuously. I just received a new unit and the calibration date is Dec. 2023. The unit shows it has V6.2 hardware and a firmware release that is not even available for download yet on Siglent's website (as of March 2024). So I am going to ASSUME based on this that the issues reported with the older versions has been fixed. So far the unit has operated flawlessly, and the two main (32V) outputs are accurate to better than the stated resolution. The third output is very limited and I don't really see myself using it, but if you need a logic source it should work for that. The UI is perhaps a little unusual but in my opinion, it's very simple to learn and operate. I've used the series-output function to power 48V devices and it works well for that (note that it is limited to 60V in series, not the 64V that you might expect). I have not had a use for the parallel (higher current) function yet. I appreciate the variable-speed fan. With the outputs off and the unit powered on, the fan does not operate. It starts to spool up at around 30-40W of output, but it's not until you get above 50% of rated power that the fan noise becomes what I would describe as noticeable. This is replacing an older single-output linear supply that had very noticeable fan noise even at idle output, so I can live with the fan on this one. I haven't done anything fancy with it yet like control it remotely or save/recall setups, and not sure I'll need to as I'm not an engineer, I'm a telecom technician. It's pretty heavy, but all good linear supplies are. The leads, while decent and tight-fitting in the sockets, are only 1M in length so you'll need to be closer to the supply to use them, or you can do what I did and buy some 5- or 6-foot test leads on Amazon (they're out there). So far I'm pleased with this unit.

### ⭐⭐⭐⭐⭐ Good supply for general work.
*by J***H on December 17, 2025*

Really nice power supply, I got one in undergrad and me and my professors liked it enough we replaced the ones in the school lab with these. Great for most projects, one issue I experienced is that the reverse current protection is less then one would hope, if you connect a power source the wrong way you can easily fry it, would add an ideal diode if planning to work with batteries. Otherwise very stable supply for motor controllers, and accuracy well beyond what anyone needs. Dials are all really smooth and feels very professional.

## Frequently Bought Together

- Siglent Technologies SPD3303X-E Triple Output Power Supply
- Siglent Technologies SDS1104X-E 100Mhz Digital Oscilloscope 4 Channels Standard Decoder, Grey
- Siglent Technologies SDM3045X 4-1/2 Digit Digital Multimeter, DMM

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-28*