Pronunciation: [ˈɒpsɪˌa͡ɪ] (IPA)
Correct spelling for the English word "OPSII" is [ˈɒpsɪˌa͡ɪ], [ˈɒpsɪˌaɪ], [ˈɒ_p_s_ɪ__ˌaɪ] (IPA phonetic alphabet).
Correct spelling for OPSII