USB C to C Data Blocker, Anti Juice Jacking, for Charge Only, Case Friendly Design, Support up to 240W PD Charging (2-Pack), Red

Fit perfectly, good job blocking data transfer and work well charging my devices, good choice especially for charging stations such as found in airports or public areas. Small and handy

Works great, both at passing through power and not passing data.

They fit a USB-C port very well. The function is rather basic - - there are only two pins connected, the + and - current pins, so current can flow through but no data. They also are handy when you want to charge something from your PC or laptop, but don't want it to connect to Windows.

Very small but does the job.

Samsung S21 series phones only charge at 25 watts maximum despite using higher wattage chargers.With my phone set on standard charge rate (15 watts) and set to 80% max charge to retain battery longevity per Samsung recommendation, I used Samsung's standard charger with its USB-A to USB-C cable.I plugged the USB-C cable end into the data-blocker device and inserted it into my phone jack. My phone then displayed a message to check my charge cable (or something like that), then showed my current 53% battery level and a time of "2 hrs,13 min" to reach 80%. I waited a minute to see if the estimated time would actually change, which did. Extremely slow charge rate just as the listing description stated it would if not using a USB C-to-C cable.To test for a faster charge rate, I swapped my charge components for those with only USB-C connections and reinstalled the data-blocker device into my phone jack. Sure enough, phone now displays "30 min" to reach 80% (starting at 53%).[Update, 3/17/25]Tried using the USB-C ports in a rental car, using the same Samsung phone and charging cable as mentioned previously, with a 47% battery status. The displayed charging time showed "2 hrs, 34 min", yet displaying only "38 min" when plugging into a Samsung USB-C, 25 watt power adapter just minutes later in my home. I even experimented with flipping and rotating the cable / connector insertions, including the data-blocker, and experienced no changes in displayed charge times.Bottom line: The data-blocker device CAN facilitate quick charging as claimed, as long as all USB-C components are up to task.Disclaimer: I did not try plugging directly into the rental car's USB-C connector without the data-blocker device for obvious reasons, so I don't know what charging times would be displayed for comparison purposes vs my power adapter.

These tiny adapters connect to the male end of a standard USB-C cable, turning it into a Charge-Only cable. These data blockers protect you from having your data stolen or malware injected into your mobile device by an infected public charging station, like the ones at airports and hospitals. They are a great investment to keep your mobile devices safe. They are small enough to always carry with you in a pocket.

Phone charges too slow with these in line, charges fast when these are not used. Might return

Super handy and great to have on hand. Works as promised. I need more. Good value.