Do you need to add a microphone to your mirrorless / dslr camera but don’t have a jack? Would you like to record directly to a thumb or hard drive? Would you like to record for more than 30 minutes with a mirrorless / dslr camera? Sure, there are products like the Atomos Ninja that will do that and more, but they are expensive. Check out this cheap hack as a Atomos Ninja alternative.