Some time ago, with the introduction of a new revision of the 12VHPWR connectors, the ATX 3.1 and PCIe 5.1 standards appeared. Although in most cases these standards are used together, they are not identical. Thermaltake has just announced a cheaper series of ATX 3.1 power supplies called Smart BX3 with 80 PLUS Bronze certification. However, these units do not have 12VHPWR and 12V-2×6 connectors because they do not use the PCIe 5.0 and PCIe 5.1 standards.
Thermaltake announced a cheaper series of Smart BX3 power supplies in the ATX 3.1 standard. However, these units will not have 12VHPWR and 12V-2×6 connectors for the latest NVIDIA graphics cards.
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The Thermaltake Smart BX3 series includes three units with power: 550 W, 650 W and 750 W and 150 mm wide, 86 mm high and 140 mm deep. Each power supply uses a DC-DC converter and a Japanese main capacitor that can withstand a temperature of 105 degrees. Moreover, the new line received a certificate 80 PLUS Bronze, so the efficiency of the units should not fall below 85%. The PSU is cooled by a 120 mm fan with an FDB (Fluid Dynamic Bearing) bearing, which is activated when the power supply exceeds 20% of the maximum load.
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The power supplies have very similar cabling, including a 24-pin cable, two PCIe 6+2-pin cables, four cables with SATA connectors and four cables with MOLEX connectors. However, when it comes to EPS connectors for powering processors, Smart BX3 550 W has only one 4+4-pin cable, while the 650 W and 750 W versions have two such cables. As we can see, these power supplies do not have connectors 12VHPWR and 12V-2×6 for the latest graphics cards from NVIDIA. The manufacturer emphasizes that the new series is to be a cheaper proposition for less demanding players. MSRP prices are listed below: