Magnetek 3390-20-001 200W Power Supply Apple Power Mac 8100 100-240V

Magnetek 3390-20-001 200W Power Supply Apple Power Mac 8100 100-240V

The Magnetek 3390-20-001 is a 200W internal power supply manufactured by Magnetek S.p.A. in Italy for use in the Apple Power Mac 8100 desktop computer. It provides both AC pass-through and multiple regulated DC output rails to power the system board, drives, and peripherals. The unit accepts universal input voltage, making it compatible with both North American and international AC mains.

Specifications & What's Included

• Manufacturer: Magnetek S.p.A. — Made in Italy
• Model / Part Number: 3390-20-001
• Maximum Output Power: 200W
• Input: 100–240V AC, 8A, 50–60Hz
• Output AC: 100–240V AC, 3A, 50–60Hz, 300VA maximum (L1)
• Output DC +5V: 30A (L3)
• Output DC +5V TRKL: 0.1A (L3)
• Output DC +12V: 5A (L3)
• Output DC −12V: 0.75A (L3)
• Certifications: UL, CSA Level 6, TÜV (DE), CE
• Cooling: internal fan (large-diameter axial fan visible on rear)
• Output cables included as shown in photos

Applications

The Apple Power Mac 8100 was Apple's high-end PowerPC-based desktop from 1994–1995, based on the PowerPC 601 processor. This power supply is the factory-fitted internal PSU for that machine, providing the specific AC and DC output rails the 8100's logic board and drive bays require. Magnetek S.p.A. was an Italian OEM supplier of power conversion equipment and produced this unit exclusively for Apple's specification. Today these supplies are sought by collectors and technicians maintaining or restoring working Power Mac 8100 systems, as the proprietary form factor and connector arrangement mean direct replacements are difficult to source new.