The PC Engine/TurboGrafx family went through a lot of power supply revisions. Different internal and external tip sizes, voltages and polarity. Here’s a list of the different models and settings.

PC Engine/TG Model	Voltage	Minimum Current	Polarity	Original PSU	DC Barrel Jack Size	Notes	Old Model	New Model	Purchase
PC Engine	9V	650mA	–	PAD-105 + PAD-106	5.5mm x 2.1mm	Compatible	MKS-1002000AU	GG090200	Amazon AU
CoreGrafx I+II	9V	800mA	–	PAD-105 + PAD-106	5.5mm x 2.1mm	Compatible	MKS-1002000AU	GG090200	Amazon AU
PC Engine Shuttle	9V	800mA	–	PAD-105 + PAD-106	5.5mm x 2.1mm	Compatible	MKS-1002000AU	GG090200	Amazon AU
SuperGrafx	9V	800mA	–	PAD-113	6.3mm x 3.0mm	We don’t have this size tip
PC Engine GT	7V	700mA	+	PAD-121	3.5mm x 1.35mm	We don’t have this size tip
CD-ROM2	9V	650mA	–	PAD-105 + PAD-106	5.5mm x 2.1mm	Compatible	MKS-1002000AU	GG090200	Amazon AU
CD-ROM2 Interface Unit	9V	1450mA	–	AD-IF30 + AD-IF30A	5.5mm x 2.5mm	Compatible		GG090200	Amazon AU
PC Engine Duo	9-10V	1000mA	+	PAD-124	6.3mm x 3.0mm	We don’t have this size tip
Super CD-ROM2	12V	1000mA	+	PAD-125	6.3mm x 3.0mm	We don’t have this size tip
Duo Monitor	9-10V	750mA	?	PAD-126	Unknown	Unknown
PC Engine LT	9V	700mA	+	PAD-127	Unknown	Unknown
DUO-R + RX	9V	1000mA	+	PAD-129 + PAD 130	4.75mm x 1.7mm	Compatible	MKS-1001200AU	GG090150	Amazon AU
Print Booster	12V	1000mA	?	PAD-111	Unknown	Unknown
TurboGrafx-16	9-10V	730mA	–	HES-ACA-01	5.5mm x 2.1mm	Compatible	MKS-1002000AU	GG090200	Amazon AU
TurboGrafx-CD	9-10V	650mA	–	HES-ACA-01	5.5mm x 2.1mm	Compatible	MKS-1002000AU	GG090200	Amazon AU
TurboGrafx-CD Dock	9-10V	1500mA	–	HES-ACA-02/03	5.5mm x 2.5mm	Compatible		GG090200	Amazon AU
TurboExpress	7V	700mA	+	HES-ACA-04	3.5mm x 1.35mm	We don’t have this size tip
Turbo Duo	9V	1000mA	+	HES-ACA-05	6.3mm x 3.0mm	We don’t have this size tip

* Polarity refers to the center tip