[Reliable Assistance] Originated from confidence in product quality, we provide warranty service for our cables. Please feel free to contact us if you have any question, friendly and prompt customer service will be offered within 24 hours. [For home office] Stay and Work at Home with Ease. Simply configure your 4K monitor for an Extended Desktop or Mirrored Displays. Connect your Apple TV 4K, AV receiver, Blu-ray players, Fire TV, Roku Ultra, PS5, PS4, Switch or other HDMI compatible devices to your Ultra 4K TV (UHD TV), HDTV, monitor, or projector and more. [Super Fast 18Gbps] This Ultra High Speed HDMI Cable 2.0 supports bandwidth up to 18Gbps transfer, offering you faster and smoother screen. Tinplate Metal Shielding and gold-plated, corrosion-resistant connectors can guarantee stable signal transmission and avoid flickering screen, black screen, and snowflake. [Advanced Material] The slim and lighter Zinc-Alloy shell has better gloss and corrosion resistance. Compared with other shells, it is more rigid and reliable. 24K gold-plated interface has faster conduction and ensuring ultimate durability. The grooved design on both sides increases the pinching comfort and is ergonomic. [4K HDMI ARC Cable] Silkland 4K HDMI Cable 6.6ft supports HDMI 2.0b including 18 Gbps, Mirror & Extend mode, Ultra HD 4K 2160p, QHD 1440p, HD 2K 1080p, HDCP 2.2/1.4, 48-Bit Deep Color, 3D, Audio Return (ARC), Dolby TrueHD 7.1 audio and Hot plugging.