Guitar Pedal Power Supply,10 Isolated Output 9V 12V 18V, Include DC Power Adapter, DC Power Cables, with Short Circuit/Over Current Protection Gear for Guitar Effects Pedal, Black

No noise, works like a charm. Like having the 12V and 18V plugs, and i've tested these with the meter and they are accurate! Just make sure you're not plugging those into your regular 9V pedals !! Looks cool and has option to turn off the bright light. The DC plugs are kind of short but it comes with 10 and various adapters and extensions. it even has a couple extensions for reversed polarity, which i used to power a longer center-positive adapter to power the whole unit actually! i'm not convinced it's "truly" isolated for each outlet, but you do have voltage regulation, it will shut off if you plug the wrong kind in, and that sort of thing. any noise seems to be a product of the guitar/pedals rather than the supply. Amazing value and great for us bedroom players.

DO NOT ORDER...COMPLETE JUNK ALERT !! Update after 2nd one arrived. I ordered this as I needed an affordable power supply that could provide 12vdc at 400mA to a vocal harmonizer pedal, plus a few other 9vdc pedals + small enough to fit where needed. I tried 2 of these exact pedals and they "both failed right out of the boxes." 1st power supply - Upon 1st powering this up = 1 LED was out and would flicker when tapped. I stopped there. Probably a bad solder joint or connection but I am not messing trying to fix it. I did not even have a chance to plug in pedals or mount to board. I thought if an LED is out, what else could be wrong? I debated whether to have a replacement sent as this was not a good indication of quality or durability. But, I opted to have another sent and returned it and will try again. I hand walked this up to UPS store 1 mile and back...needed the exercise. 2nd power supply - this one arrived the next day ( yippie, Amazon, nice job on replacement.) But my elation was short lived. Again, it too failed out of box but worse in a way. I took it out, plugged it in and all the LEDs came on, wow! So far it's ahead of the first one. I hooked up a multi meter to measure voltage / amps = ok so far. Next, fitted and wired it in place on my board, AND connected just 3 pedals to test. It seemed ok...but when I moved the board slightly and it bumped gently on the floor...ALL THE LEDS BUT 2 WENT OUT, AND MY PEDALS POWERED- OFF. I checked everything, nothing was loose. I tried unplugging pedals, checking connections. But I was able to recreate this issue several times...just by raising the pedal board 1/2 inch off the tile floor and removing my hand to let it rest on the floor....intermittent OFF/ON... with some kind of clicking noise...like a relay or electrical component on the inside, click, click. Honestly, I wanted so badly to smash this 2nd one to bits with a hammer, and mail it back in pieces...but, sent it back intact for refund. This time letting UPS pick it up from my front door This is the worst product I have ordered from anywhere in recent memory, pedalboard, or otherwise. This is not trolling, so do not go there...but an honest assessment of my experience with not 1 but 2 of these power supplies within just 2 days. If I could give it less than 1 star...maybe 0 or negative -5, I would.

Does it's job well overall for much cheaper than any other place or brand I've seen.

This works great. I was getting tired of replacing each pedals battery or having pedal AC adapters fail. Now everything is up with just the flip of one switch.

I don't know about durability cause I've only had it a little while, but it does the job Adds no detectable noise. Very happy with it so far

Put this on my board and was immediately rewarded with the hiss of a pissed off viper. I floor tested it against my Powerall adapter with each pedal, and in not one case was it quieter. The worst part is as I added pedals it got worse, so it's CLEARLY not isolated. Bottom line - Don't waste your time.

Advertised as 10 isolated outlets. I verified with my multimeter that all grounds and shields share common ground. No isolation from power or in between. It is a nice small power supply for pedals that do not suffer from ground or digital noise issues. Do not buy if you require isolated outs. :(

Didn’t work out of the box. I changed a capacitor that looked suspect, and reflowed the entire circuit board. It worked fine after that, at least for a week. Then the DC adapter stopped working, and I had to replace that. There are better options.