DPS‑300AB‑20 Specifications
Delta / HP 300 W ATX Power Supply Unit
Manufacturer: Delta Electronics (OEM for HP)
Manufacturer Model: DPS-300AB-20 (and variants)
Product Line: HP/Delta Desktop ATX Power Supplies
Product Series: “300AB” 300 W ATX Series
Product Type: Internal Power Supply Unit (PSU)
Product Name: Delta/HP DPS-300AB-20 300 W ATX PSU
KEY FEATURES:
Power Output: 300 Watts (Maximum)
Input Voltage Range: 100-240 V AC, 50-60 Hz (auto-ranging)
Form Factor: Standard ATX internal desktop PSU, commonly used in HP business desktops
Cooling: Internal fan (often ~80 mm)
Connector Types: Includes 20/24-pin ATX main connector, +12 V CPU connector (4-pin), SATA and Molex peripheral connectors
Protection: Over-Voltage Protection (OVP), Short-Circuit Protection (SCP), Over-Current Protection (OCP)
PERFORMANCE:
Rated Output Power: 300 W continuous
Typical Dimensions: ~150 mm (W) × ~140 mm (D) × ~86 mm (H) — standard desktop ATX size
Efficiency: ~70% minimum under full load (based on variant spec)
ENVIRONMENTAL & RELIABILITY:
Supports global input mains (100-240 V) making it suitable for regions like Pakistan (≈230 V, 50 Hz)
MTBF: ~100,000 hours (some listings)
Designed for continuous use in business desktop systems
PHYSICAL:
Form Factor: Internal ATX PSU for desktop PCs
Typical Weight: Approx. 1 kg (varies by revision)
Installation: Fits standard ATX power bay in compatible chassis
USAGE RECOMMENDATION:
This PSU is best suited for business-class desktops with moderate demands (e.g., office PCs, basic workstations) where a 300 W power supply is sufficient. It is not recommended for high-end gaming rigs or systems with high power GPUs unless the rest of the system and cooling are appropriately matched.
When using in Lahore/Pakistan (230 V mains), ensure the unit supports 200-240 V input (which this one does) and check that the connectors and cable lengths match your PC case.
If you like, I can pull the detailed rail-specs (+12V, +5V, +3.3V currents) and provide local availability/pricing in Lahore, Pakistan for this model.

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