After watching many reviews on this power supply, I decided to buy it.It was a good choice for the price range.Its performance is spot on, although on some voltage ranges, you MIGHT notice a .01 volts difference on the screen from what you choose and what the output actually is. It's not a big deal and since there are only 2 digits past the decimal point, that .01 may actually be something like .006. If that's a big deal, then dial in the voltage you want, minis -.01. So for 12.00 volts, choose 11.99 volts. But that is so not a problem.As expected, it's a bit heavy, but that's due to the transformer inside, which are always heavy. I actually like the heaviness and it gives it a feel of good quality, which it is.LOVE IT!UPDATE: OCT 2019STILL LOVE IT! Use it daily. :)UPDATE: JUN 2020YUP! STILL LOVE IT. Still used daily. ;)

Les photos parlent d'elles même.La seule remarque que je peux faire, c'est que le canal 2 est plus près de la tension voulue.

Buscaba una fuente de poder para mis proyectos de electrónica (no soy profesional) y cumplió su objetivo.Ya venía con el firmware mas reciente y el selector de voltaje/fusible configurados para mi país.Me gusta que tiene un puerto ethernet y se puede controlar remotamente. Así pude generar gráficas en la computadora.

Gutes Netzteil, das sich mit einem Hack leicht auf die größere Auflösung des teureren Modells tunen lässt. Leider keine Stromeinstellung/Überwachung/Messung des 5V-Kanals.

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.