If an ATX power supply deviates from the standard dimensions of 140 x 150 x 86 mm, we immediately think that it must be longer in depth. For the most part, that would be the correct assumption, given the trends of high output PSUs we've seen over the decades. On the other hand, we see the efficient designs allowing manufacturers to require less cooling capacity, and now we can find quite a few 1000+ W units that fit into standard ATX dimensions. Today we're looking into something that takes these advancements and utilizes them differently - the Enermax REVOLUTION D.F. 12 850 W, which has a reduced depth of 122 mm, reducing the volume occupied by the PSU by almost 13 %.
Now the main question might naturally be "why?". After all, if we have an ATX case, we are guaranteed to fit in a regularly sized PSU with a depth of 140 mm. With a regularly sized ATX case the benefits really might not be that appealing. You might be left with more working space for your cable management, but after all, regular ATX cases typically allow adding in at least a 150 or 160 mm deep PSU, often larger. Where this reduced depth PSU would be appreciated the most is small ATX PSU supporting cases. I myself run an ASRock Deskmeet X600 as my main machine, which, despite its modest dimensions, houses a full size ATX PSU. But together with an RTX 4060 Ti and all other components, I become really appreciative of any available space in the case that would improve the airflow inside.
Even if we disregard the size factor the REVOLUTION D.F. 12 850 W (a 750 W version is also available) is a very well specced unit with ATX 3.1 support and 80 Plus Gold efficiency levels, providing a very compelling package for the price. Before the usual vendor-provided list of specifications, one more nice detail - the PSU comes in both black and white colors. Today we're taking a look at the white version, making it a feasible consideration for a broader circle of potential buyers.
Specifications
Enermax REVOLUTION D.F. 12 850 W
Features & Specs
80 Plus Efficiency
Gold
Modular
Fully Modular
Cable Type
Mesh-Sleeved Cable
Total Power (W)
850
Input Voltage (V)
100–240
Input Current (A)
10
Input Frequency (Hz)
50-60
Fan Size (mm)
115
Operating Temperature (°C)
50
MTBF (Hours)
>100k
Protection
OCP, OVP, UVP, OPP, OTP, SCP
Dimension (D x W x H), (mm)
122 x 150 x 86
Enermax REVOLUTION D.F. 12 850 W
Power Specs
AC Input
100–240 Vac, 50–60 Hz, 10 A
DC Output
+3.3 V
+5 V
+12 V
-12 V
+5 VSB
Max. Output Current
20 A
20 A
70.8 A
0.4 A
3 A
Max. Output Power
100 W
849.6 W
4.8 W
15 W
Total Power
850 W
Packaging and Accessories
The box of the REVOLUTION D.F. 12 follows the packaging style we saw with the PlatiGemini PSU - a brown cardboard box with a white band around it, including an image of the unit, all the main specifications including the DC output table, a list of included cables as well as main features. The D.F. switch spins the fan in the opposite direction to remove some of the accumulated dust (while this is also performed when the computer is being shut down, this might be useful to those who keep their machines running 24/7).
Opening the box reveals the user's manual with the securely packaged PSU and the modular cables tucked underneath it. Alongside the plentiful modular cable selection Enermax includes an AC cable, mounting screws, a testing jumpstart cover for the 24 pin connector and a set of white combs to organize the included cables in your case.