300W ATX Power Supply for Inspiron 620 660 Vostro 260 270
300W internal desktop power supply for compatible Inspiron, Vostro, OptiPlex, and Precision mini tower systems using a standard 24-pin ATX motherboard connector and 4-pin CPU power connector. This replacement PSU is designed for matching tower chassis that require a 300W unit with SATA power leads and the same physical size, connector layout, and mounting style.
Technical Specifications
- Primary Part Number: DPS-300AB-36
- Part Type: Internal desktop power supply
- Maximum Output Power: 300W
- Form Factor: Standard ATX-style desktop PSU
- Dimensions: 150mm x 86mm x 140mm
- AC Input Voltage: 100-127V~ / 200-240V~
- AC Input Current: 8A / 4.5A
- Frequency: 50/60Hz
- DC Output +12VA: 17A
- DC Output +12VB: 9A
- DC Output +3.3V: 10A
- DC Output +5V: 13A
- DC Output -12V: 0.3A
- DC Output +5Vaux: 2.0A
- Installation Type: Internal screw-mounted desktop PSU
- Application Type: Desktop tower power supply replacement
Connector & Cable Layout
- Main Connector: 24-pin ATX motherboard connector
- CPU Connector: 4-pin 12V CPU power connector
- SATA Power Connectors: 4x SATA power connectors
- Main Cable Length: Approx. 11"
- CPU Cable Length: Approx. 6.5"
- SATA Cable Layout: 2 SATA connectors on one cable and 2 SATA connectors on second cable
- AC Power Cable: Requires standard C13 AC power cable, sold separately
Interchangeable / Replacement Part Numbers
0VWX8, 949H1, CD4GP, D300R001L, DG1R8, DPS-300AB-36, FFR0Y, GH5P9, HT996, K932C, KF76H, N183N, N184N, N380F, N381F, N383F, N385F, P981D, PKRP9, R215C, RW3R8, V7K62, VK8VC, W205D, XW597, XW598, XW600, XW603, Y359G, YX445, YX448
Required Power Cable Sold Separately
This power supply requires a standard C13 AC power cable, sold separately: M2PNC 3 ft C13 Power Cable
✅ Confirmed Compatibility
Please note that the following list is not exhaustive. Compatibility depends on your system’s specific configuration. It’s essential to verify compatibility with your desktop model, original power supply part number, connector layout, wattage, and chassis style prior to installation.
✔ Inspiron Mini Tower Models: Inspiron 518 MT, Inspiron 519 MT, Inspiron 530 MT, Inspiron 531 MT, Inspiron 537 MT, Inspiron 540 MT, Inspiron 541 MT, Inspiron 545 MT, Inspiron 546 MT, Inspiron 560 MT, Inspiron 570 MT, Inspiron 580 MT, Inspiron 620 MT, Inspiron 660 MT
✔ Vostro Mini Tower Models: Vostro 200 MT, Vostro 201 MT, Vostro 220 MT, Vostro 230 MT, Vostro 260 MT, Vostro 270 MT, Vostro 400 MT, Vostro 410 MT, Vostro 430 MT
✔ OptiPlex Mini Tower Models: OptiPlex 390 MT, OptiPlex 790 MT, OptiPlex 990 MT
✔ Precision Tower Models: Precision T1500
☑️ Key Features
☑️ 300W replacement power supply for compatible desktop tower systems
☑️ Standard 24-pin ATX motherboard connector
☑️ 4-pin 12V CPU power connector for compatible boards
☑️ Includes four SATA power connectors for hard drives, SSDs, and optical drives
☑️ 150mm x 86mm x 140mm ATX-style dimensions for matching tower chassis
☑️ Useful replacement for failed, noisy, intermittent, or underperforming power supplies
☑️ Supports 100-127V and 200-240V AC input for broad regional compatibility
☑️ Direct-fit replacement when the original PSU part number matches one of the listed interchangeable numbers
⚙️ Fit Notes
- Match your original power supply part number when possible
- Confirm your original PSU is a 300W unit with the same connector layout
- Confirm your system uses a 24-pin ATX motherboard connector and 4-pin CPU power connector
- This power supply is intended for compatible MT / mini tower systems
- This is not intended for slim, small form factor, USFF, or micro chassis systems
- Compare the physical dimensions, screw mounting points, rear AC plug location, and fan orientation before ordering
- Verify the number and position of SATA power connectors needed for your hard drives, SSDs, and optical drives
- This unit does not include an AC power cord unless shown
- A compatible C13 AC power cable is required and sold separately
- Always disconnect the AC power cable and allow the system to fully discharge before replacing a power supply
