Chieftec Proton BDF-400S
 | Outdated Product The base model in the Proton power supply family. The PSU is designed for advanced computers with a high level of performance. Form factor ATX (PS/2). The power supply has fixed current-carrying wiring and the circuitry is 80 PLUS Bronze certified. The device has a fairly high efficiency, which reaches 85%. The power supply is not subject to heating to a dangerous temperature, the circuit provides protection against overheating. The main advantage of the Chieftec Proton BDF-400S is the use of a new generation of DC-DC voltage stabilization. The principle of stabilization is built both on a group principle and individually, which ensures the highest level of power supply for all elements of the computer path. It also provides protection against short circuit, insufficient voltage and overvo...ltage. The cooling system is represented by a 120 mm fan, which operates in a fairly quiet mode, and the rotation speed is determined automatically by the system, depending on the load. The power supply provides connection of only 1 graphics card. The motherboard is connected using a standard 24 pin connector. |
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The base model in the Proton power supply family. The PSU is designed for advanced computers with a high level of performance. Form factor ATX (PS/2). The power supply has fixed current-carrying wiring and the circuitry is 80 PLUS Bronze certified. The device has a fairly high efficiency, which reaches 85%. The power supply is not subject to heating to a dangerous temperature, the circuit provides protection against overheating.
The main advantage of the Chieftec Proton BDF-400S is the use of a new generation of DC-DC voltage stabilization. The principle of stabilization is built both on a group principle and individually, which ensures the highest level of power supply for all elements of the computer path. It also provides protection against short circuit, insufficient voltage and overvoltage. The cooling system is represented by a 120 mm fan, which operates in a fairly quiet mode, and the rotation speed is determined automatically by the system, depending on the load. The power supply provides connection of only 1 graphics card. The motherboard is connected using a standard 24 pin connector.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Chieftec 2026 - new arrivals, bestsellers, and the most relevant models Chieftec.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Chieftec 2026 - new arrivals, bestsellers, and the most relevant models Chieftec.
Model overview based on user reviews
The Chieftec Proton series offers a range of power supply units (PSUs) that are generally well-received for their affordable price and quiet operation. Users appreciate the efficiency and quality of cables, with many noting the modular design as a significant advantage. The PSUs come with Bronze certification and include all types of protection, making them suitable for budget to mid-range builds. However, some users have reported issues with short cables, particularly for ATX cases with bottom-mounted power supplies, and a few have experienced whistling noises during stress tests. Despite these minor drawbacks, the Chieftec Proton series is considered a reliable choice for those seeking a cost-effective PSU with decent performance.
Pros
Cons
2 3 5 12 |
On my previous computer, I also had a Chieftec APS-750C, worked flawlessly for 9 years and still running, satisfied with the brand. Surge Protection Overcurrent Protection Short Circuit Protection Modular Connectivity Bronze Certification The 4+4 pin CPU power cable is somewhat short, I had to stretch it directly as there's not enough for cable management. The cables are closely fitted to the HDD bay, but it's tolerable in the Aerocool Aero One Frost case. use Chieftec Proton month or more i recommend it should buy |
I’ve been using it for almost three years, at first it was on a mining farm, 4 1060 video cards and a processor were powered from it, now it’s in my home computer, it works well, I bought it in January 2018 for 90 € for a computer neververse, the wires are long -Long cables No use Chieftec BDF-850C more than year |
In my opinion, it's the best one, both 500 and 600 can handle any mid-budget build with a graphics card UP TO 2070 super. Got it for 4k rubles. I was considering the be quiet! System Power 9 (same price), but something bothered me as its graphics card support is only up to 24A, whereas here it's 50A. Although the reviews are also okay, I have a feeling they might be inflated, it's be quiet! after all. Chieftec Bronze certification All types of protection Good capacitors Components with a modern converter Thick and black wires, clearly no cost-cutting, some in braided sleeves. I didn't see it. Many people write that the short wires for standard ATX cases with a bottom-mounted power supply are nothing like that. Photo as an attachment.  Evgeniy: use Chieftec BDF-600S few months |
3 out of 22 user review(s) shown
10 more user review(s)
We recommend
750 - 1600 W, ATX, modular, 24+8+8(4+4) pin, 3 - 8 x 6+2 pin, 1 / 2 x 16 pin, SATA 9 / 12, Molex (IDE) 3 / 6
650 - 850 W, ATX, 24+8+8(4+4) pin, 2 / 3 x 6+2 pin, - / 1 x 16 pin, SATA 2, Molex (IDE) 1
750 - 1200 W, ATX, modular, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 / 2 x 16 pin, SATA 9, Molex (IDE) 2
850 - 1250 W, ATX, modular, 24+8+8(4+4) pin, 1 / 6 x 6+2 pin, 1 / 2 x 16 pin, SATA 8 / 12, Molex (IDE) 4
750 - 1200 W, ATX, modular, 24+8+8(4+4) pin, 3 / 4 x 6+2 pin, 1 / 2 x 16 pin, SATA 5, Molex (IDE) 4
1600 / 2200 W, ATX, modular, 24+8+8+8 pin, 4 / 8 x 6+2 pin, 2 / 4 x 16 pin, SATA 18, Molex (IDE) 3
850 / 1000 W, ATX, modular, 24+8+8(4+4) pin, 1 / 3 x 6+2 pin, 1 / 2 x 16 pin, SATA 8, Molex (IDE) 4
1000 / 1200 W, ATX, modular, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 7, Molex (IDE) 6