20-Pin Male to 24-Pin Female Extension Cable (30cm / Made in Japan), for G3 MT and B&W models
 
This 20-pin male to 24-pin female extension cable is specially designed for Power Macintosh G3 MT and G3 B&W (*1) power supply conversions.
It provides clean cable management, reliable power delivery, and an authentic look when upgrading vintage Macs with modern ATX PSUs.

*1: The G4 PCI model uses essentially the same design as the G3 B&W, so the power cable from the G3 B&W model can be used.

Check out our blog for installation instructions and detailed information.
 
Features
Optimal Length (30cm)
Provides flexibility and easy routing inside the case.
Durable Construction
High-quality copper conductors with PVC insulation ensure stable power delivery.
Heat & Voltage Resistant
Rated for 105°C and up to 600V, offering excellent safety and reliability.
Supports High Wattage
Compatible with power supplies up to 600W, ideal for expanded systems.
Vintage Mac Compatibility
Designed specifically for Power Mac G3 MT and G3 B&W models.
Case fan power cable already present
The wiring for the case fan is already installed.
 
Notes
This product is intended for PowerMac G3 MT or B&W PSU conversions. Use with PowerMac G3DT model at your own discretion. It doesn't fit in the case, so you'll have to set it up outside the case.
The disassembly procedure for replacing the power supply in a G3 B&W (G4 PCI) is described here.
Depending on the PSU connector and system, insertion/removal force may vary.
No other products are included except the cable. Please prepare your own ATX PSU.