The SI prefix for "kilo" is "k", not "K". For Bytes, both "kB" and "KB" are correct, although usually "KB" indicates that you're using the binary system (IEC "kibibytes") and "kB" indicates that you're using the decimal system ("kilobytes"). https://en.wikipedia.org/wiki/Byte
WEB-3410
The SI prefix for "kilo" is "k", not "K". For Bytes, both "kB" and "KB" are correct, although usually "KB" indicates that you're using the binary system (IEC "kibibytes") and "kB" indicates that you're using the decimal system ("kilobytes"). https://en.wikipedia.org/wiki/Byte