Name: RFK09 Dell 250W Power Supply for OptiPlex 390 990 790 DT
Brand: Dell
SKU: RFK09
Price: 253.00 USD
Availability: InStock
Rating: 4.8 (130 reviews)

Product Overview
The RFK09 Dell 250-Watts Power Supply provides consistent power specifically for Dell OptiPlex 390, 990, and 790 desktop models. It fits neatly into the desktop chassis and supports everyday computing needs by maintaining stable voltage and current delivery, which helps ensure ongoing system reliability in office and home environments.

General Information
Brand	Dell
Part Number	RFK09
Product Type	Desktop Power Supply
Condition	Refurbished

Technical Information
Input Voltage	100-240V AC
Input Frequency	50-60 Hz
Output	+12V,+5V,+3.3V,+5VSB,-12V
Max. Output Power	250W
Hot Swappable	No
Redundant Support	No
Cooling Type	Active Fan
Modularity	Non-Modular
rail_design	Single 12V Rail
Number of Fans	1

Compatibility
Form Factor	Proprietary
Compatible For	Dell OptiPlex 390 (DT), Dell OptiPlex 790 (DT), Dell OptiPlex 990 (DT)

Connectors
Connector Types	24-pin ATX, 4-pin CPU, SATA, Molex

Physical Characteristics
Weight	3.00

Certifications and Environmental
Compliance Standards	WEEE, RoHS, CE, FCC, UL, cULus

Product Description
This 250-watt power supply is built specifically to serve Dell OptiPlex 390, 990, and 790 desktop models, providing the necessary power for smooth operation. It's commonly found in office or business environments where these Dell desktops are in use. IT technicians, system builders, and users looking to replace or upgrade their desktop power units benefit from its compatibility and dependable performance. The power supply supports the day-to-day needs of standard desktop computing. Key Features Compatible with Dell OptiPlex 390, 990, and 790 DT models Delivers stable 250-watt output for system reliability Compact size fits seamlessly inside desktop casing Designed to maintain consistent power delivery under typical workloads Easy to install for quick system maintenance or upgrades This power supply is typically found inside business or home office desktops where dependable power is essential. It plays a key role in keeping systems running steadily without interruptions or power-related issues.

Use Cases
The RFK09 Dell 250W Power Supply is primarily used within office and educational environments where Dell OptiPlex 390, 990, and 790 desktops are deployed. It is suited for IT administrators managing mixed workloads requiring dependable and steady power delivery for standard business applications and productivity tasks. How It's Used: Supporting small to medium business workstations running standard office software and web applications. Powering desktop PCs in educational labs where consistent uptime is critical for student access. Maintaining reliable operation in call centers with high-density desktop deployments. Replacing failed power supplies in legacy Dell OptiPlex systems to extend hardware lifecycle in corporate environments. Facilitating stable power for remote office desktops where IT resources are limited. By ensuring stable and consistent power delivery, this power supply helps maintain system reliability and reduces downtime. Its compatibility with legacy Dell systems supports operational continuity and cost-effective infrastructure management in business and institutional settings.