I purchased a Dynex™ - 6' 4K Ultra HD HDMI Cable to connect my Mac-book Pro to a Vizio Smart TV and after attempting to make the connection first with both powered off, when plugging in the cord, and then again when both were powered on, neither the TV or the MBP recognized that the HDMI cord had been plugged in. I also tried to connect the same MBP using the Dynex HDMI chord to Samsung Smart television and wasn't able to get a connection. In case you're wondering my MacBook Pro is the (Retina, 13-inch, Early 2015) and the Vizio was purchased in 2018. If you're looking for a cheap chord to connect a MBP to a TV to use as an external monitor, your best bet is to go with a thunderbolt to HDMI cord. If you need a cheap HDMI chord to connect a DVD player, this may suit your needs, but mac users looking for a cheap way to connect to an external monitor. This isn't the chord you're looking for.