https://thepihut.com/products/raspberry ... wer-supplyNope. The extra 18W are not available to a Pi 5. The cable and connectors are only rated for 5A and the Pi5 will only accept 5v. To get 45W you need 9A@5V or a higher voltage.A Pi 5 needs 27W or 45W from official PSU
For that adapter to work at up to 240W it's either dumb as a stump with passive PD pass through, or e-marked with the correct data. Whether that brand can be trusted or not is an entirely different question and one I can't answer.
Assuming the adapter lives up to its rating it should be fine. If it doesn't pass PD through the PI will only get the default 3A@5V and behave accordingly.
And? It doesn't supply more than 5A@5.1V to the Pi5. Not least because that's all the Pi5 will ask for. PD requires active negotiation between source and sink.
From the page you linked to:
My emphasis.The Raspberry Pi 45W USB-C Power Supply is an ideal power supply for USB-C powered 5V Raspberry Pi products offering up to 5.1V 5A, as well as third-party PD-compatible products due to its additional PD profiles, including 9V 5A, 12V 3.75A, 15V 3A and 20V 2.25A.
From the official page for the 45W PSU:
I don't see a 9A@5V mode listed on either page.Output: 5.1V/5.0A, 9.0V/5.0A, 12.0V/3.75A, 15.0V/3.0A, 20.0V/2.25A (Power delivery)
And, just to be absolutely clear, from the Pi5 Product page:
So the 45W PSU provides no additional benefit to a PI5 (or 4B for that matter) than the 27W PSU (and that's 27W because it's actually 5A@5.1V. 5.1V being within spec for Pi).5V/5A DC power via USB-C, with Power Delivery support
Statistics: Posted by thagrol — Sun Nov 02, 2025 7:32 pm