Dell 240W SFF Power Supply (W2DN4) - 80 PLUS Bronze, 8-pin Dell Proprietary

Delivers 240 W of continuous power with 80 PLUS Bronze efficiency, engineered for Dell OptiPlex 3020, 7020, 9020, XE2 SFF, Precision T1700 SFF, and Vostro 3900 SFF systems. The 8-pin Dell proprietary main connector ensures a secure, model-specific fit.

Overview

The Dell W2DN4 power supply provides stable, reliable power for small form factor business desktops. Manufactured by Bestec, it converts 100-240 V AC input to the DC outputs required by Dell SFF motherboards and components. Active Power Factor Correction (PFC) improves energy efficiency and reduces harmonics.

What stands out

• 240 W total output with dedicated +12 V rail rated at 17 A
• 80 PLUS Bronze efficiency for lower energy waste and heat
• Proprietary 8-pin main power connector for exact Dell compatibility
• Comprehensive protection: OVP, OCP, OPP, and SCP
• Internal cooling fan maintains optimal operating temperature

Technical details

• Input voltage: 100-240 V AC, 50/60 Hz
• Output rails: +12 V (17 A), +5 V (15 A), +3.3 V (12 A), +5 Vsb (2 A), -12 V (0.1 A)
• Connectors: 8-pin Dell proprietary main, 4-pin ATX CPU, 3x SATA, 1x Molex
• Form factor: Small Form Factor (SFF)
• Cooling: Internal fan
• Compliance: CE, FCC, RoHS

Our verdict

A direct-fit replacement power supply for specific Dell SFF desktops, delivering reliable 240 W output with bronze-level efficiency and essential protections.