Overview
The Delta Electronics DPS-650AB is a 650-watt hot-swap redundant power supply engineered for reliable server power delivery. This unit provides single +12V output rated at approximately 52.9A, making it suitable for mid-range server platforms requiring redundant power architecture. The DPS-650AB features standard ATX form factor connectors (24-pin, 8-pin, 10-pin, and 4-pin) for broad motherboard compatibility.
Key Features
- 650W continuous output with hot-swap capability for zero-downtime maintenance
- Single +12V rail output for streamlined power distribution
- Wide input voltage range (100–240V AC) for global deployment
- Active Power Factor Correction (PFC) for efficiency and reduced harmonic distortion
- Multiple ATX connectors for flexible motherboard and component integration
- Compact form factor optimized for rack and chassis mounting
Technical Specifications
- Output Power: 650W continuous
- Primary Output Voltage: +12V @ 52.9A
- Input Voltage Range: 100–240V AC
- Input Current (max): 9–10A at 50–60 Hz
- Efficiency: Active PFC designed for >85% efficiency under typical load
- Temperature Operating Range: 0–50°C
- Form Factor: Hot-swap 2U rack-mount or chassis-mount module
- Connectors: 24-pin ATX main power, 8-pin ATX CPU power, 10-pin secondary, 4-pin auxiliary
- Cooling: Forced-air convection with thermal cutoff protection
- Certifications: CE, FCC, UL listed (typical for Delta industrial supplies)
Typical Applications
- Server power supplies for mid-range enterprise systems
- Network switches and infrastructure equipment requiring redundant power
- Storage and backup systems with high-availability requirements
- Industrial computing platforms requiring robust 650W single-rail output
Compatibility & Replacements
Compatible With
- Server platforms with hot-swap power module slots
- Systems accepting standard +12V 650W ATX power supplies
- Redundant PSU configurations (dual-supply setups)
- Enterprise server chassis with 2U power distribution backplane
Replaces / Drop-In Replacement For
- DPS-650AB-14 (common OEM variant)
- DPS-650AB-16 A (alternative firmware revision)
- Other 650W Delta Electronics server power supplies with identical connector pinout
Works With
- Standard ATX motherboards and server platforms
- Hot-swap power distribution units in redundant configurations
- Server management firmware monitoring power supply health and status












