IAN CANADA UCPI 2025 Module d'Alimentation à Supercondensateurs pour Raspberry Pi

Good solid upgrade to try before going up to expensive PSUs
I will start by saying that the use case for my RPi4B is as a DLNA server.
meaning i have a usb ssd where i store my music, and use assetUPNP to index and serve music on network in the form of a DLNA server.

i have experimented with 3 power supplies, i even modded an ifi ipower elite in order to get better performance out of the Pi.
I invested a lot of time in optimising the the RPI os to be as minimal as possible (turn off hardware i do not need, leds, stop unused processes, etc...)

even so, with many tweaks and fixes, this board provides a lower noise floor.
The soundstage becomes deeper, and more details are apparent, as well as greater dynamics, without any added harshness in the high registers.
So i would advise anybody that wants to play with a Rpi for audio to go for this board before spending much much more on better power sources.
i'm not saying don't do it, i am saying having this board as a buffer / interface (it feeds the RPI power through GPIO pins) has been beneficial even with higher quality switching power supply.

if i had to nit pick, i don't much like the spike feet - but nobody is making you buy them - and if there is something i feel the UCPI is not doing right, it is the choice of input power, the USP C.
i would have been happier with screw contacts like on the output side, or maybe a DC jack 5*2.1 for example.
and the solder points for input power could be thrgough holes, so you can actually solder bigger gauge wire.
so my only problems are with the connectors used by the board. functionally, i consider it an immens value, and a good adition to my setup.

Tout n'est pas parfait
Je pensais à tort que les supercondensateurs fonctionnaient en quelque sorte comme de petites batteries et stockaient de l'électricité pendant une certaine durée. Ce n'est malheureusement pas le cas. Sur mon Pi5, ils se chargent très rapidement, il n'est pas nécessaire d'attendre les 20 à 30 minutes indiquées dans le mode d'emploi pour que la LED 3 s'allume. Quelques secondes suffisent pour le processus de charge. Est-ce normal ?

Après tout, la carte permet d'alimenter le Pi5 avec une batterie externe normale.

Traduit avec DeepL.com (version gratuite)

pure battery voltage
pure battery voltage
using supercapacitor and ultra low mosfet
using it for my singxer su2
gives 5% better sound
and better most high-end power supply

Good value
I did a review of Ian Canada TransportPi and this was added to it. It subtly improved my overall perception of sound quality of that board. Not sure how it actually measures for noise, which is something I am interested in. But I do think the ability to run a device purely off an ultracapacitor to decouple from a direct mains supply is worthwhile.

Powersupply
Incredible good