Newton Power NPS-200PB-56C 200W ATX Desktop Computer Power Supply Rev 00

Newton Power NPS-200PB-56C 200W ATX Desktop Computer Power Supply Rev 00

The Newton Power Ltd NPS-200PB-56C is a 200-watt ATX form-factor power supply designed for desktop computers. It accepts a wide input voltage range of 100–240V AC at 50–60Hz, making it compatible with both North American and international power systems. The full connector harness is present and includes a 20-pin ATX main connector, 4-pin Molex peripheral connectors, and a floppy power connector.

Specifications & What's Included

• Model: NPS-200PB-56C, Rev 00
• Maximum output power: 200W
• Form factor: ATX
• Input: 100–120V AC / 5.0A and 200–240V AC / 3.0A, 50–60Hz
• Output +5V: 18.0A
• Output +12V: 6.0A
• Output +3.3V: 10.0A
• Output -5V: 0.3A
• Output -12V: 0.3A
• Output +5VSB (standby): 0.7A
• Connectors: 20-pin ATX main, 4-pin Molex drive connectors, floppy power connector
• Cooling: top-mounted 80mm fan with rear exhaust
• Manufactured in Thailand; date code 9729 (approx. 1997, week 29)
• Includes full factory output connector harness

Applications

The NPS-200PB-56C is a mid-1990s ATX power supply from the early years of the ATX standard, which Intel introduced in 1995 to replace the older AT form factor. A 200W rating was standard for desktop PCs of that era — typical builds included a Pentium or early Pentium II processor, a single hard drive, an optical drive, and one or two ISA or PCI expansion cards. ATX supplies like this one are still sought after for maintaining or restoring late-1990s desktop systems, retro computing builds, and vintage PC projects where the original PSU has failed. The 20-pin ATX main connector is compatible with motherboards from that generation, and the Molex connectors power standard 3.5-inch and 5.25-inch drives of the period.