Raspberry Pi 4 Official Power Supply USB-C - UK Plug 5.1V 3A Black

I bought a white colour version of this official RPi adapter in December 2020. As of June 2021 it still works perfect and powers my 4GB RPi-4 Type B without hiccups (working continuously). The colour of the enclosure or the cable hasn't yellowed and never perceived it heat-up unduly.

Product matches description

Work great with raspberry pi 4, but still when I connect HDD to USB 3 port the voltage drop down and the wireless keyboard range become short.

After 30 days It’s doing the job until now

Very reliable and good quality, but the price is slightly high..

Item is as advertised.

Original one.

بائع أمين و مهذب

Oh Raspberry Pi.... Yeah, this does the job for that perfectly. Keeps a great constant current and will likely make the Pi last a lot longer than using some USB charger that I found in a draw. A USB charger is not the same as a USB power supply. Chargers have a lot of variance on power feed and this can lead to issues with your Pi not having enough power. I would recommend this for powering your Raspberry Pi. I wouldn't recommend it for any pie related activities.

الشاحن الوحيد اللي ينفع لرازبيري باي ومابيفيدك في شحن اي شي لانه يعتبر ضعيف

Excellent -- works perfectly well as an adapter to power a small e-ink calendar. Perfect. Reasonable price too.

Just because it says Raspberry Pi on the tin, that doesn't mean these excellent and inexpensive power supplies should be limited to the DIY computers. These units have been independently tested to have excellent voltage stability and ripple suppression, meaning they are a great choice for sensitive 5v devices such as audio interfaces and DACs. What's more the 5.1v spec was designed to account for the voltage drop incurred by the cable and the connector. Clever. Will it audibly improve sound quality? Well unless you're using an absolutely dire power supply it's doubtful. But chipsets are happiest when there's nice, stable power, and along with the rest of the components, isn't being hammered by voltage spikes, dips and ripple current. In other words, components last longer and chipsets perform better when theres a nice, stable flow of power that doesn't stray outside of what the circuit was designed for. For sub twenty quid, it's a no brainer for taking extra precautions in the hopes your equipment will last longer.

Trusted power with good regulation, low ripple and reliability one would hope. I'm using this for audio peripherals rather than a Pi, which is absolutely fine, it makes perfect sense. 15W/3A at 5.1V is more than enough to power many DACs, this is a perfect solution. Why would one compromise on power otherwise?