Nice quick demo, those things are useful for sure, helped me to get connected to a buddies cinewhoop that would have otherwise been impossible to get a regular cable to plug into (I have similar one but without the hinging just baked in 90degree on the tip of it so can slide into tight spaces). Only downside I've heard is the little magnetic parts can pick up dust and/or corrode over time and so can start to get crappier connection if using them long term (and not good for charging things really since relatively high resistance connection), but still clutch for when you just need a data cable to connect.