Name OS Size Last Update
Musicsoft Downloader V5.7.5 for Windows Win 17.2MB 2024-03-21
USB-MIDI Driver V3.1.4 for Win 10/8.1/8/7 (32-bit) Win 6.3MB 2015-08-26
USB-MIDI Driver V3.1.4 for Win 11/10/8.1/8/7 (64-bit) Win 6.4MB 2015-08-26
Name English English
PSR-I400 Owner's Manual [1.9MB]
PSR-I400 Data List [3.2MB]
PSR-I400 MIDI Reference [83KB]
PSR-I400 Owner's Manual (TEXT) [102KB]
Name English English
PSR-I400_Festival Pack [113KB]
PSR-I400_TRINITY_GRADE_EXAMINATIONS_REGISTRATION_DATA [26KB]
Song Book for PSR-I400 [21.3MB]
List of USB devices confirmed to work with PSR-E443, PSR-I400/I455, SKB-J700, KB-290, KB-291 [127KB]