This cable Max Support 8K(7680*4320) Ultra High Definition Resolution, It supports 8K@60Hz, 4K@144Hz Refresh Rate. Note: If you would like to output Video and Picture to your Mini DisplayPort Monitors, your Monitor's Mini DP Port must support Video Transmitting(DP Alternate Mode) Important Notes While Using: 1:This Thunderbolt to Thunderbolt cable is compatible with both Thunderbolt 1 and Thunderbolt 2 specifications. If your monitor is thunderbolt 3 and 4 port, it can not work.2: The laptops with Mini DisplayPort works as input devices should support DP Alternate Mode for video Transmitting. 3: The cable only used for video transfer, can not be used as data transfer. At present, the true 8K related devices on the market are not particularly popular. If you want to output 8K video or images through our cable, please make sure that your input device and monitor support 8K. Compatible Lists: Widely Compatible with Apple MacBook, MacBook Pro, MacBook Air, I Mac, Mac Mini, Mac Pro; Microsoft Surface Pro 4, Pro 3, Pro 2, Surface Book and other mini Display port equipped laptops. Packing Contents: 1xMini DisplayPort to Mini DisplayPort 8K Cable.18 Month worry-free warranty, 24 hr dedicated email customer support.