255W Power Supply H255ES-00 | Replacement for Dell Optiplex 3020 7020 9020 SFF | 8+4 Pin

Aomoproing H255ES-00 is a high-quality 255W switching power supply engineered as a direct replacement for Dell Optiplex 3020, 7020, 9020 SFF (Small Form Factor) desktops and Precision T1700 workstations. It is fully compatible with OEM part numbers H255ES-00, L255AS-00, AC255ES-00, HU255AS-00, NT1XP, YH9D7, R7PPW, 3XRJ0, V9MVK, ensuring an identical fit, pinout, and function.

This unit delivers stable and efficient power with a strong +12V rail, supporting the CPU and component demands of compact SFF systems. It features 100-240V universal input (50/60Hz) with active Power Factor Correction (PFC) for global compatibility and optimal energy efficiency. The 8-pin (main) + 4-pin (CPU) connector layout is precisely designed for Dell's proprietary motherboard interface, guaranteeing 100% compatibility with no modifications required.

Built with premium industrial-grade components, this power supply includes comprehensive safety protections: Over-Voltage (OVP), Over-Current (OCP), Short-Circuit (SCP), and Over-Temperature (OTP) to safeguard your critical hardware. An integrated, temperature-controlled fan ensures quiet yet effective cooling, maintaining performance during continuous 24/7 operation. Each unit undergoes strict electrical testing and load aging to ensure superior reliability and longevity.

Specifications:

1. Power: 255W
2. Input: 100-240V~4.6A, 50/60Hz
3. Output: +12V (high-output rail), +5V, +3.3V, 5Vsb
4. Connectors: 1x 8-pin ATX Main, 1x 4-pin CPU
5. Form Factor: Dell SFF (Small Form Factor)
6. Protection: OVP, OCP, SCP, OTP
7. Cooling: Temperature-controlled quiet fan
8. Compatibility:
9. Dell Optiplex: 3020 SFF, 7020 SFF, 9020 SFF
10. Dell Precision: T1700 SFF
11. Replacement P/N: H255ES-00, L255AS-00, AC255ES-00, HU255AS-00, NT1XP, YH9D7, R7PPW