Fuse ProtectionIn order to protect your card. the SAPPHIRE cards have fuse protection built into the circuit of the external PCI-E power connector to keep the components safe.Optimized Composite HeatpipeThe composite heatpipes are fine-tuned for each individual cooling design with optimal heat flow. efficiently and evenly spreading out the heat to the entire cooling module.Two-Ball BearingThese feature Dual Ball bearing fans. which have an approximately 85% longer lifespan than sleeve bearings in our tests. The improvements to the fan blades means the solution is up to 10% quieter than the previous generation.Tough Metal BackplateThe all-aluminum backplate provides additional rigidity that guarantees nothing bends and dust stays out. It also helps cool your card by increasing heat dissipation.