Genuine OEM 250W 20-Pin ATX Power Supply for Dimension OptiPlex PowerEdge Precision Desktop Systems

Restore reliable power to your compatible desktop, server, or workstation with this genuine OEM 250W power supply. The 2N333 is designed for select Dimension, OptiPlex, PowerEdge, and Precision systems and uses a classic 20-pin ATX main power connector with a 4-pin 12V CPU connector, making it a strong replacement for many older ATX-based machines. With multiple Molex power leads and a floppy connector, this unit is especially well suited for legacy systems that rely on IDE-era storage and accessory connections.

This power supply is a good fit for repairs, restorations, and replacements in compatible systems that require the original form factor, connector layout, and 250W output class. It is also a practical option for other machines that use a standard 20-pin ATX connection and matching physical dimensions.

Technical Specifications

• Part Number: 2N333
• Product Type: Power Supply
• OEM Type: Genuine OEM
• Maximum Output Power: 250W
• Form Factor: ATX Desktop Power Supply
• Dimensions: 150mm x 85mm x 140mm
• AC Input:
  • 100-120V~/9.0A
  • 200-240V~/4.5A
  • 50-60Hz
• DC Output:
  • +5V - 22A
  • -12V - 1A
  • +12V - 14A
  • +3.3V - 18A
  • +5VSB - 2.0A
• Connectors:
  • (1) 20-Pin ATX Main Connector - 12.5"
  • (1) 4-Pin 12V CPU Power Connector - 12.5"
  • (1) Floppy Power Connector - 25" on same cable as 21" IDE connector
  • (5) IDE / Molex Power Connectors - 21", 22", and 25" cable positions

Interchangeable / Replacement Part Numbers

• 2N333, 2Y054, 0N380, 0N2286, 0M0148, 0M1608, 0F0340, 0F0894, 0G0495, 0P1444, 0P3117, 1E115, 3E482, 4G456, 4R656, 8X162, 8X949, H2678, K2583, K2946, N2286, M0148, M1608, P1444, P3117, ATX-250GU, DLP2507F3B, HP-P2507F3, HP-P2507F3B, HP-P2507F3C, HP-P2507F3CP, HP-P2507F3P, HP-P2507F3R, HP-P2507FW, HP-P2507FWPk, NPS-250FB, NPS-250FB-B, NPS-250GBB, NPS-250KBB, NPS-250KBC, NPS-250KBD, NPS-250KBE, NPS-250KBF, PS-5251-2DS, PS-5251-2DFS

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

✔️ Dimension Series: B110, 1100, 2200, 2300, 2350, 2400, 4300, 4400, 4500, 4550, 4600, 8200, 8250, 8300
✔️ OptiPlex Series: GX60 SMT, GX150 SMT, 160L SMT, 170L SMT, GX240 SMT, GX260 SMT, GX270 SMT
✔️ PowerEdge Series: 400SC, 500SC, 600SC
✔️ Precision Workstation Series: 340, 350, 360
✔️ Standard ATX 20-Pin Systems: Other desktop and workstation systems that use a standard 20-pin ATX main connector, 4-pin CPU power connector, matching 150mm x 85mm x 140mm dimensions, and similar 250W output requirements

☑️ Key Features

☑️ Genuine OEM 250W power supply for compatible desktop, server, and workstation systems
☑️ Standard 20-pin ATX main power connector for many legacy ATX-based platforms
☑️ Includes 4-pin 12V CPU power connector for compatible motherboards
☑️ Multiple IDE / Molex power connectors make it ideal for older hard drives, optical drives, and accessories
☑️ Includes floppy power connector for legacy hardware support
☑️ Strong replacement option for older Dimension, OptiPlex, PowerEdge, and Precision systems
☑️ Well suited for repairs, refurbishments, and retro desktop restorations
☑️ Good option for other machines using the same form factor and connector layout

⚙️ Fit Notes

• This power supply is intended for systems that use a 20-pin ATX main power connector and a 4-pin 12V CPU connector
• Please verify the physical dimensions before ordering: 150mm x 85mm x 140mm
• This unit is best suited for older Molex / IDE-era systems and may not be appropriate for newer systems that require 24-pin ATX, SATA power, or higher wattage
• Connector match alone is not enough; please also confirm mounting alignment, rear chassis fit, cable reach, and power requirements
• This power supply may also work in other compatible ATX systems that use the same connector layout and similar output profile