Overview
The Dell PS-5231-9DB is a 235W SFF (Small Form Factor) power supply unit designed for Dell Optiplex desktop computers. This RoHS-compliant unit is manufactured by Lite-On and delivers stable power across multiple voltage rails, making it a reliable replacement for compatible Optiplex systems. Used, tested, and fully functional.
Key Features
- 235W continuous power output with 80 Plus Silver efficiency rating
- ATX 24-pin main power connector plus 4-pin +12V auxiliary connector
- SATA and Mini-SATA optical connectors for modern storage devices
- SFF form factor fits compact Optiplex desktop enclosures
- Single cooling fan for reliable thermal management
- RoHS-compliant design
Technical Specifications
- Manufacturer: Lite-On
- Model: L235ES-00
- Part Number: PS-5231-9DB-RoHS
- Power Output: 235W
- Input Voltage: 100–240V AC
- Input Frequency: 50–60 Hz
- Input Current: 3.5A maximum
- Rail Outputs: +12V @ 17A, +5V @ 16A, +3.3V @ 5A, -12V @ 0.5A, +5VFp @ 4A
- Connectors: 24-pin ATX, 4-pin +12V, SATA, Mini-SATA
- Form Factor: SFF (Small Form Factor)
- Cooling: 1 x cooling fan
- Efficiency Rating: 80 Plus Silver
- Weight: 8.0 lbs
Typical Applications
- Dell Optiplex SFF desktop replacement and repair
- Systems maintenance and upgrade projects
- Data center refresh and equipment recycling operations
- Used/refurbished computer assembly and resale
- Spare parts inventory for IT support departments
Compatibility & Replacements
Compatible With
- Dell Optiplex 380 SFF
- Dell Optiplex 760 SFF
- Dell Optiplex 780 SFF
- Dell Optiplex 960 SFF
- Other Optiplex SFF models using standard ATX 24-pin power connectors
Replaces / Drop-In Replacement For
- Dell PS-5231-9DA (similar SFF models)
- Lite-On L235ES-00
- Original equipment in Dell Optiplex 760, 780, 960 SFF systems
Works With
- ATX-compatible desktop motherboards and storage devices
- SATA and mini-SATA optical drives
- Standard ATX 24-pin connectors
- Systems requiring 235W or less continuous power draw



