RGEEK 1106 DC to DC ATX PSU 12V 300W Pico ATX Switch PSU 24pin MINI ITX PC Power Supply for Computer

Works great with a portable ITX computer I built. Would definitely recommend if you're needing an alternative power source for computer.

I dabble in CPU mining. My little farm had grown to the point where I had ATX power supplies all over the place and they took up as much room as the motherboard itself. These Pico PSUs run off 12V so there's multiple ways to power them. Using a 1200W server PSU and a breakout board you can power 1 to about 8 CPU mining rigs, depending upon how much wattage you are drawing per rig. In the attached pic you can see I have 8 rigs in a small footprint. I used to have only 4 in this space b/c the ATX PSU took up half a shelf. I recommend these slightly more expensive 300W Pico PSUs over the cheaper 200/250 watt versions. More PSU headroom is always a good idea. Been running these for about a month now, no issues at all. Highly recommended.

How does something this small deliver 300W? By not having to produce the 12v from which most of the computer's power is drawn, so all it has to do is switch it on and off, plus regulate it down for the 5v and 3.3v busses which require much less current. The problem is that the included wiring to the 12v bulk supply isn't robust enough to handle the current at higher power levels without excessive voltage drop. When I tested the supply with a Meanwell bulk supply, there was over a volt of drop from the bulk supply to the motherboard due to the resistance in the wiring and connectors when the computer was running at peak power of about 150W, and that's not good. I replaced the 12v input connector with 12ga soldered-in wires, and the barrel connector with Anderson PowerPole 20A connectors, two pairs in parallel. With the same type of wiring to the bulk supply, the voltage drop was reduced to less than a tenth of a volt at peak power. That said, the modified supply has been running pretty much 24/7 for the last 3+ months without any trouble with the CPU making regular full-power runs.

I use this power supply in my file server, where it has been running 24/7 for over a year. I don't use anywhere near the rated 300 watts, since I ended up using a 10 watt CPU instead of the 65 watt CPU I planned for. Update: it is now 1 month shy of 3 years and the power supply still keeps my file server running 24/7. The server is only rebooted for kernel updates. Update 2: now over 4 years 24/7 for my file server. I purchased a second power supply for a mini PC that is also working flawlessly; this one is only used a few hours per week.

This thing works perfectly. Using it with this power supply (https://www.amazon.com/gp/product/B074GGMD5J) on my media computer for a totally silent build! Working flawlessly for over 4 months now. Updated: I now own 2 of these and they are both working perfectly. One is in my son's i3 for a silent build in his room, one is in an i7 silent build in my bedroom. These things are great! Buying a third to silence the computer in our kitchen. It's liberating to rip out a noisy power supply and put in this tiny thing for blissful silence! Other thoughts: This is a 300 Watt power supply. Be smart and make sure you're tracking your power budget! It easily handles my 95Watt i7 3770k, 100Watt motherboard, 5Watt processor cooler, dual Ethernet (80' runs), and a few low power USBs. And I ask a lot of my system. BUT, I use the onboard Intel Video!!! This is a perfect power supply for a silent build if you use the processor's onboard video, but don't go putting in a video card that pulls 500 Watts! Do a little homework and some simple Math!

Cables are stiff and short. I was very worried the pcb would be damaged with the amount of force required to get the 24-pin atx connector ends to go in. The frustration is compounded by the lack of alternative options of higher quality. On the bright side this one has been working well for a year of usage in a low-power mini-itx server. I do wish it had a larger voltage tolerance range so that I could run the unit off DC battery backup but an inline buck-boost converter does the work of stabilizing the power source for me. Overall if you want more versatility and quality go with a pico-box mini-itx PSU but if you're budgeting or already have a 12VDC power brick then this option works.

The power supply on my (14 year) old mini ITX case was starting to randomly power itself off. This power supply has been running fine for a month now in my system. The system is small and only draws 30W, so I'm not stressing the power supply much. The power supply appears to be made with quality components, has clean solder joints, is very clean, and should last a long time. I'm very happy.

Working fine on system with average draw 50W, peak 150W. Docked a star for the 12v input connector which looks only good enough for maybe 50W. I replaced it with a 4 pin molex that is working fine.

I bought this unit as a replacement for a less powerful model. It did the trick and the motherboard powered up right away. I have been using it ever since and I have had no complaints. It get a good review from me.

I bought this to put into a mini ITX pfsense build I was doing and it worked great. It's been running for about a year now and I have had zero issues.

I bought this to replace a nano-type PSU which was somehow sending noise (ground loop buzz plus intermittent sputtering) over HDMI and TOSlink. It took drilling for L-brackets to mount it in my Wesena mini-ITX case. Plugged it in, turned it on, hooked it up, and the noise is gone! (Well there's a very low level ground buzz with my ear within an inch or 2 of the speaker: I can live with that.) I don't know if the other PSU board was defective or simply attaching the ground wire on this one did the trick (the nanu didn't have a ground wire) but I wish I'd tried this before spending a lot of money on less effective isolators etc. Giving 4 stars only because it's new and reliability is not confirmed. Great value.

was easy to setup

This PSU should be rated at 125w max not 300 The plug and input wires get uncomfortably hot above 125w I am certain anywhere near 300 watts things will become dramatic. The Input wire size at18ga is grossly undersizsd should be at least 14ga. One star reduced because of cost for 8 pin cpu adapter and undersized input wires that i was forced to replace.