Extension Connection 1-The Cable Matters Mini DisplayPort Extension Cable provides a convenient way to extend the connection between a PC or older Mac with Mini DisplayPort output to a monitor with Mini DisplayPort input. 2-This sleek and flexible cable also functions to connect a monitor with Mini DisplayPort to a computer with Mini DisplayPort output. 3- It provides MST Multi-Stream Technology compatibility support to connect a MST hub for daisy chaining multiple monitors. Connect a Thunderbolt 2 MacBook, MacBook Pro, MacBook Air, Mac mini, or Mac Pro to an LED-Lit monitor with Mini DisplayPort input. 4-Important Notes - This is NOT a THUNDERBOLT cable - This cable is NOT iMac Target Display or Thunderbolt Display compatible - Requires a Mini DisplayPort cable (sold separately) - 4K RESOLUTION support requires a 4K-rated source, output and Mini DisplayPort cable See more

5- Note:only can work for mini displayport, cannit work for any thunderbolt extension. 4-Low-profile connector does not block adjacent ports on your computer, has molded strain-relief for long life, and has ergonomically designed treads for easy plugging and unplugging. 3-Material: 20+1 copper core, 24K gold-plated plugs. 2-Designed and manufactured to DisplayPort 1.2 standards,Backward compatible with DisplayPort 1.1. 1-High-resolution support of up to 4k x 2k,Support for High Bit Rate 2 (HBR2) bandwidth of up to 21.6 Gbps.