Based on this product's specifications, here are some alternatives and similar models
Power supply Dell 265W ATX model 9D9T1, 265W output, ATX form factor
Summary description:
Dell 265W ATX power supply model 9D9T1 provides a stable 265-watt output in a standard ATX form factor. Designed for compatible Dell desktop systems, it supplies necessary voltages to motherboard and components, enabling reliable operation and system upgrades. Suitable for replacing a faulty PSU or restoring original power capacity in supported Dell models.