The PSB-120 power adapter can be used in place of the PSB-1U adapter and works with Roland keyboard models including:

AD-5, AR-100, AR-200, AX-Synth,
BR-8, BR-900CD,
CD-2E, CF-10, CM-300, CM-32L/P/64, CM-500, CR-80, CS-10, Cube Street,
D-2, D-5, DIF-800,
E-09, E-15, E-36, EM-303, EM-505, Ep-35, Ep-70, Ep-707, Ep-7mkII, Ep-9, Ep-90,
F-30/50, F-90/100, FA-101, FA-66, Fantom-Xa, FP-2/3/4, FR-1/2/2B,
GI-20, GR-1, GR-30, GT-10/10B, GW-7/8,
HPD-10, HPD-15,
JS-8, Juno-D, Juno-Di, Juno-G, Juno-Stage, JV-1010, JV-30/35, JV-50, JW-50, JX-305,
M-100FX, M-10DX/MX, M-16DX, M-660, MC-09, MC-303, MC-50/mkII, MC-707, ME-X, Micro Cube Bass RX, Micro Cube RX, Mobile Cube, MT-100/120, MT-200, MT-90S, MV-30,
P-55, PAD-8/80, PC-80, PCR-300, PCR-300/500/800, PCR-500, PCR-800, PCR-A30, PK-25, PK-7, PM-16, PR-100/300,
R-70, RA-30/50, RA-90/95, RC-50, RD-300SX/GX, RS-5/9, RS-50/70,
SC-155, SC-50, SC-55/55mkII, SD-35, SH-201, SH-32, SK-500, Sonic Cell, SP-303, SP-404/SX, SP-555/606, SPD-8, SPD-S,
TD-3/4, TD-6/6V, TD-8/9, TMC-6, TU-1000,
UA-5/100/101/700, UM-550,
VB-99, VE-7000, VG-99, VK-8M, VT-1, W-50, XP-10, and the XV-2020

It's also a replacement adapter for the Roland PSB-120, ACB-120, ACF-120, ACK-120, and ACI-120 adapters.,