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ENERMAX DIGIFANLESS is the world's first digital monitor controlled fanless power supply. The proprietary ZDPMS (Zero Delay Power Monitoring System) software allows user to read the real-time PSU power consumption, efficiency and internal temperature. The DC output current, voltage protection warning points and 12V rail(s) can also be manually configured.

Input your local average electricity tariff and regional CO2 footprint, ZDPMS will calculate the estimated electricity consumption, cost and CO2 emission of the system.

DIGIFANLESS is equipped with ENERMAX's comprehensive circuit protection layout to avoid the risk of system damage. Additionally, the warning message will be displayed if ZDPMS detects any abnormal power load, which gives users the opportunity to debug before the system shut down.
High efficiency performance certified 80PLUS® Platinum.

Advanced +5Vsb circuitry with up to 20% improved efficiency in comparison to generic designs helps your system meet 2013 ErP Lot 6 ( AC < 0.5W at standby) requirement.
*With ErP Lot 6 enabled motherboard.


Fixing the AC cord tightly to avoid accidental shutdowns of your PC.

Full modular cabling design with individual sleeved wiring for flexible and refined cable management.

Two 6+2P(8P)PCI-E 2.0
Two 4 x SATA
Four 4P Molex + 1 x FDD
One 24P & 4+4P(8P) MB/CPU
1 x ZDPMS data link
| AC Input Voltage | 110-240VAC, 50-60Hz, Active PFC | ||||||
| AC Input Current | 6.0-2.5A | ||||||
| DC output | Rated | 3.3V | 5V | 12V1 | 12V2 | -12V | 5Vsb |
| 0-20A | 0-20A | 0-30A | 0-30A | 0-0.5A | 0-2.5A | ||
| Combined | 100W | 540W(45A) | 6W | 12.5W | |||
| Total Power | 550W | ||||||
| Peak Power | 605W | ||||||



Silver Award
“The Enermax Digifanless 550W PSU is excellent. That was a very short sentence that covers most of the pertinent information for this unit today.” -Hardocp
Excellent Hardware Award
“DIGIFANLESS has high efficiency, stable output voltages, very good accessory, silent operation and well-functioning software interface! - Hardwareluxx”
Worth Buying Award
“The Enermax DIGIFANLESS 550W is built to cater to a specialist audience, and it is an exceptionally well built unit that performs just as well.” - Kitguru
Quality and Recommendation Awards
“The manufacturing quality of DIGIFANLESS achieves the highest level and the fanless design ensures a silent operation – literally silent!” - Frazpc
4.5 of 5 Performance and 5 of 5 Silence Awards
“ENERMAX marks a quality power supply. If you are looking a silent, performance power, the DIGIFANLESS 550W is a smart choice.”
- Ginjfo