14 DAY TRIAL // But they still manage to move a sufficient amount of air to keep the PSU cool. Actually, you can easily understand that a bigger fan can move the same amount of air (it?s the volume that counts!) as a 120mm fan, but it doesn?t need to spin as fast because it?s bigger. As a result, a bigger fan will always be quieter than a smaller one for a needed CFM (cubic feet per minute).
With the launch of Purepower RX series Thermaltake enters the ultra-low noise power supplies. The 140mm fan used here is also found on Toughpower Series PSUs. The Purepower RX series with 140mm fan is available with Cable Management option in 450W, 500W, 550W, 600W forms. In standard cable output only 400W, 450W and 500W PSUs will ship.
The Purepower RX series PSU complies with ATX12V V2.2 specification and comes with Active PFC (power factor correction) built in. Over voltage protection (OVP), over current protection (OCP) and short circuit protection (SCP) along with no load operation protection come as standard on these new Thermaltake power supplies.
Regarding the cables, the Purepower RX comes with four SATA connectors for newer HDDs, seven Molex connectors for optical drives/hard drives or fans and two PCIe connectors needed to power multi-GPU setups. The actual wattage and number of +12V rails is still unknown but if these PSUs will follow the trend set by the ?Toughpower? series, the outputs will prove sufficient for a high-end PC.
However, with a maximum rated power of 600W, this new PSU line is probably aimed more at the silent-PCs market than at the enthusiast one. So, if you have in mind an 8800 GTX setup, you might want to look elsewhere for your dream PSU.