@Raiden can you not use the blackvue app, and just connect phone via wifi to the camera and pull the vid that you want that way??
Thats how I have used mine for a long time. Also as others have said - pretty much any SD card adapter can be used on both a mac or windows for checking the vids. (you should have the blackvue app installed on the mac or pc and should work fine)
What camera do you have? I have the DR650, about 4 years old and going strong, I use a lens filter and the vids are full HD and pretty good quality. As and when it does pack in, I will go for the full 4K model or the one with the 4G built in. Not the cheapest out there, but I like the fact there is no annoying screen and the size is great for subtle install etc.