Roland / Boss PSB-7U Power Adapter. Sold without a power cable, this is available separately (Figure of Eight AC Cord/Lead). The adapter delivers 12 Volts and a maximum current of 4000 mA
This adapter is the successor of the ACN-230, ACO-230, ACJ-230 and PSB-4U. This adapter is sometimes also used as a replacement for the 'old' ACO-230T adapter
Please note that a conversion cable MUST be ordered in addition to the PSB-7U in order to use one of the adapters mentioned above
So for a complete alternative to the ACO-230T adapter you need: 1x Roland PSB-7U 1x Figure of Eight AC Cord/lead (power cable) 1x AC Adapter Conversion Cable California.