A:AnswerThe Galaxy Tab A9+’s 11″ LCD-TFT panel reaches a peak brightness of 493 cd/m² in a full-white (100 % APL) test and maintains almost the same level—492 cd/m²—under an APL18 (mixed light/dark) measurement. Real-world testing also reports a practical peak of about 480 nits under typical usage conditions.
https://bing.com/search?q=Samsung+Galaxy+Tab+A9%2b+brightness+rating
https://tabletreviewhub.com/samsung/galaxy-tab-a9/
A:AnswerNo unfortunately, the Galaxy Tab A9+ does not support MHL or DisplayPort (DP) Alt Mode over USB-C2. That means you can’t use a USB-C to HDMI adapter for wired video output to a monitor or TV.
DP Alt Mode and MHL require specific hardware support in the tablet’s USB-C controller, and Samsung typically reserves that for higher-end models like the Tab S series. The A9+ is more budget-focused, so it skips that feature.
***What You Can Do Instead
Use Smart View or screen casting to mirror wirelessly to compatible TVs or streaming devices like Chromecast or Roku.
Some apps (like YouTube or Netflix) support casting directly from within the app.
