PC Power & Cooling Standard 250ATX ATX Desktop Power Supply 250W 115V 230V

PC Power & Cooling Standard 250ATX ATX Desktop Power Supply 250W 115V 230V

The PC Power & Cooling Standard 250ATX is a 250W ATX form factor power supply for standard desktop computers. It accepts dual-voltage AC input (115V or 230V) and delivers regulated DC output across six rails to power internal PC components including the motherboard, drives, and expansion cards.

Specifications & What's Included

• Model: Standard 250ATX
• MPN: 250ATX
• Manufacturer: PC Power & Cooling, Inc.
• Form Factor: ATX
• Maximum Output Power: 250W
• Input: 115V AC @ 6A or 230V AC @ 3A, 50/60Hz
• Output Rails: +5V @ 20A, +12V @ 9A, -5V @ 0.5A, -12V @ 0.8A, +3.3V @ 9A, +5VSB @ 0.1A
• Certifications: UL, cUL
• Connectors: ATX 20-pin main connector, Molex peripheral connectors, Berg (mini) connectors — full harness intact
• Cooling: Dual internal fans
• Included: Unit only — no additional accessories

Applications

ATX power supplies in the 250W range were the standard for desktop computers through the 1990s and into the early 2000s, powering systems built around Pentium, Pentium II, Pentium III, and early Pentium 4 processors. The ATX specification — introduced by Intel in 1995 — standardized the form factor, connector pinout, and soft-power switching that replaced the older AT standard. A 250W unit like this was sized appropriately for a typical single-processor tower with a hard drive, optical drive, floppy drive, and a few PCI cards. These supplies fit any ATX-compatible tower case and pair with ATX motherboards of that generation. They remain useful today for maintaining or restoring legacy systems, as drop-in replacements in period-correct builds, and as bench power sources for testing ATX-era hardware.