Dell 265W Power Supply for OptiPlex MT, Active PFC, AcBel, 9D9T1

When a Dell OptiPlex mini tower shuts down unexpectedly or fails to power on, a faulty power supply is often the cause. The Dell 265W MT power supply (part 9D9T1) restores reliable operation to compatible OptiPlex and Vostro desktop systems.

Who is it for

IT technicians and system integrators servicing Dell OptiPlex 3010, 7010, 9010, 390, 790, 990 MT and Vostro 260/260s MT desktops. This unit is a direct replacement for the original AcBel-built supply, matching the proprietary form factor and connector layout.

Main features

• 265 W total output for stable system power
• Active Power Factor Correction (APFC) for efficient AC-to-DC conversion
• Dell proprietary 8-pin main power connector and 4-pin CPU connector
• Three SATA and one Molex peripheral connectors
• Single internal cooling fan
• Over voltage, over current, and short circuit protection

Specifications

• Power output: 265 W
• Form factor: Dell Proprietary Mini Tower (MT)
• Input voltage: 100-240 VAC
• Input frequency: 50/60 Hz
• PFC: Active
• Main connector: Dell proprietary 8-pin
• CPU connector: 4-pin ATX 12V
• SATA connectors: 3
• Molex connectors: 1
• OEM: AcBel
• Compatibility: OptiPlex 3010, 7010, 9010, 390, 790, 990 MT; Vostro 260, 260s MT
• Cooling: Single internal fan
• Protection: OVP, OCP, SCP
• Dell part number: 9D9T1
• Alternate part numbers: H265EM-00, L265EM-00, D265EM-00, AC265EM-00, F265EM-00

Tips

Verify your system's form factor before ordering; this MT supply will not fit small form factor (SFF) or ultra small form factor (USFF) chassis. Always disconnect power and discharge residual charge before installation.