Let me start by saying this little gadget has been a lifesaver for my photography workflow. The ability to transfer RAW files from my DSLR to my iPhone while charging the device simultaneously is a game-changer. No more frantic battery-saving mode during shoots!
The build quality feels sturdy compared to other flimsy adapters I've used in the past. The SD card slot has a satisfying click when inserting cards, though I did notice the MicroSD slot can be a bit finicky - you really have to push it in until it locks.
Transfer speeds are decent for casual use. I clocked about 15-20MB/s transferring 4K videos from my Canon R5, which isn't lightning fast but gets the job done. The simultaneous charging feature works perfectly with my iPhone 13 Pro, though some users report issues with iPad Pros.
Where this really shines is its versatility. I've used it to connect USB drives to my Android tablet, transfer photos from old CF cards (using a CF-to-SD adapter), and even connected a keyboard to my iPad during editing sessions. The USB-C port saved me when I upgraded to a new MacBook Pro.
However, there are some quirks. The USB-A port is hit-or-miss with external hard drives (works fine with flash drives). Also, while the company's customer service seems excellent (they proactively refunded one user), quality control might be inconsistent based on reviews.
For $25, this is an absolute steal if you work across multiple devices regularly. Just don't expect Thunderbolt speeds or MacBook-level build quality. Keep it in your camera bag as an emergency transfer tool rather than your primary workflow solution.