• 1380 MHz Boost Clock in OC mode for outstanding performance and gaming experience.
• Patented Wing-Blade 0dB Fans for max air flow with 105% more air pressure. Play in silence with 0dB fans.
• IP5X-Certified Fans are dust resistant for longer fan lifespan.
• Industry Only Auto-Extreme Technology with Super Alloy Power II delivers premium quality and best reliability.
• VR-friendly HDMI Ports for immersive virtual reality experiences.
• GPU Tweak II with Xsplit Gamecaster provides intuitive performance tweaking and instant gameplay streaming.

Warranty : 3 years
https://www.asus.com/hk/Graphics-Cards/DUAL-RX580-O8G/