Seasonic B12 BC B12-BC-650
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Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Seasonic 2025 - new arrivals, bestsellers, and the most relevant models Seasonic.
Buy Seasonic B12 BC B12-BC-650
Seasonic B12 BC power supply unit 650 W 20+4 pin ATX ATX Black B12 BC-650 | £111.97 |  | |||
| £93.31 |  | ||||
Seasonic B12-BC-650 | £72.99 |  | |||
Seasonic B12 BC configurations
| Price for Seasonic B12 BC | ||||
|---|---|---|---|---|
 | Seasonic B12 BC B12-BC-550 | from £120.78 | 1 offer | |
| Seasonic B12 BC B12-BC-650 | from £72.99 | 3 offers | |
 | Seasonic B12 BC B12-BC-850 | from £83.99 | 3 offers | |
medal standings
Seasonic B12 BC-650 is one of the most affordable "bronze" models of the famous Taiwanese brand, the main innovator in the power supply market (only the A12 series with a "white" certificate is cheaper). The active reactive power correction method minimizes the interference that the PSU feeds back into the power grid. It was Seasonic who was the first among all PSU manufacturers to transfer all their products to Active PFC.
Smart Savings
All necessary elements are soldered at the power input: EMI filter, varistor and fuse. The high-voltage capacitor is from the Taiwanese company Ltec, and the low-voltage ones are from the Chinese AsiaX and ChengX, since all of them are high-temperature 105 °C. The 12 cm plain bearing fan is made by Yate Loon.
Quiet and smooth
The smart algorithm S2FC — Smart and Silent Fan Control is responsible for controlling the speed of the turntable. So, in a simple PC, the rotation speed is generally indistinguishable by ear 600 rpm. With an increase in load, the speed gradually increases to 1600 rpm. And even at maximum load, the main transformer, traditionally the hottest element of the PSU, does not heat up above 70°C.
Overfulfill the standard
Taking into account the large margin up to the critical temperature, the manufacturer gives as many as 5 years of warranty for the PSU (instead of the typical two or three). There is also a reserve in terms of power: according to the results of independent testing, the Seasonic B12 BC-650 can withstand an overload of up to 40 percent, which is an impressive result for a low-cost PSU. Of course, it is strongly not recommended to operate the PSU in this mode all the time.
