كابل USB-C متعدد المنافذ @AlexeyShcherbak The difference between Stopwatch and DateTime.Now cannot be in excess of ten-twenty ms, Examine your code once again. And I do not care about milliseconds in my examination. Also my code might be a number of lines of code for a longer period with Stopwatch. https://arqoob.com/product/39041/brave-braided-data-cable-usb-a-to-lightning-cable