U+0425 Cyrillic Capital Letter Ha

The Wikipedia has the following information about this codepoint:

Kha or Ha (Х х; italics: Х х) is a letter of the Cyrillic script. It looks the same as the Latin letter X (X x X x), in both uppercase and lowercase, both roman and italic forms, and was derived from the Greek letter Chi, which also bears a resemblance to both the Latin X and Kha.

It commonly represents the voiceless velar fricative /x/, similar to the correct pronunciation of ⟨ch⟩ in “loch”.

Kha is romanised as ⟨kh⟩ for Russian, Ukrainian, Mongolian, and Tajik, and as ⟨ch⟩ for Belarusian, while being romanised as ⟨h⟩ for Serbo-Croatian, Bulgarian, Macedonian, and Kazakh. It is also romanised as ⟨j⟩ for Spanish.