In Win ATX12V & EPS12V Power Supply

Meet the In Win ATX12V & EPS12V Power Supply—a compact internal PSU designed to deliver reliable, region-flexible power for a wide range of PCs. Built to support ATX12V and EPS12V configurations, this 300 W unit is ideal for everyday desktops, home offices, media centers, and budget-conscious gaming rigs. It provides clean DC outputs for essential rails and a single cooling fan to keep temperatures in check. With universal input options for 120 V or 230 V AC, it adapts to power standards around the world. The two +12V rails help distribute high-current loads safely across CPU, GPU, and peripherals, while the 3.3 V rail contributes to the safe operation of motherboard electronics and memory. Designed for straightforward installation and dependable operation, this power supply offers a practical, cost-effective upgrade path for builds that demand solid performance without unnecessary complexity.

• Power reliability for everyday PC builds: The In Win ATX12V & EPS12V Power Supply delivers up to 300 W of dependable output, distributing energy across the essential rails you rely on to run a modern PC. Featuring two +12V rails, it provides stable current delivery for CPU and graphics tasks while keeping other components within safe voltage ranges. The clean, dedicated 3.3 V and 5 V outputs help maintain system logic and peripheral performance, reducing the risk of voltage fluctuations that can affect stability and longevity. This unit is built to support standard PC components, making it a practical upgrade for budget-conscious builders who want reliable performance without compromising on power quality or safety.
• Universal input compatibility: The power supply supports both 120 V AC and 230 V AC input, enabling easy use across regions and power environments. This flexibility means you can install the In Win PSU in a regional build without worrying about voltage converters or adapters. The automatic input recognition ensures the device behaves consistently whether you’re building a home office PC, a compact media PC, or a modest gaming system. With universal input support, you can source components and plan builds with greater freedom, knowing your power supply can adapt to your local mains standard.
• Balanced rail design for safety and performance: Equipped with two +12V rails, this unit helps segregate high-current loads from other circuits, improving overall system safety and stability. The 12 V rails are the primary source for CPUs and graphics cards, while the 3.3 V and 5 V rails handle logic, memory, and storage interfaces. This separation can reduce stress on any single rail and contribute to consistent performance under load. By delivering targeted voltages through dedicated rails, the In Win PSU helps promote steady system operation even during bursts of activity in gaming, multimedia editing, or multitasking workloads.
• Quiet cooling for a calm workspace: A single internal cooling fan is included to manage thermal output and maintain steady voltages. The fan orientation and design prioritize airflow to the critical components, helping keep temperatures in check while you work or play. While the exact noise level depends on system load and case airflow, the compact design minimizes heat buildup for typical desktop configurations. This thoughtful cooling approach makes the In Win PSU a sensible choice for home offices, bedrooms, or living spaces where quiet operation matters as much as reliable power.
• Simple installation and broad compatibility: As an internal PSU designed for ATX12V and EPS12V configurations, it installs in most standard PC cases with straightforward mounting using case screws. The compact form factor and simplified cable routing make it easy to integrate into both older and newer builds. By delivering essential DC outputs through standard rails, the unit supports a broad range of motherboard sizes and peripherals, from basic storage to essential expansion devices. If you’re upgrading from an older unit or building a budget-friendly workstation, this power supply provides a dependable power backbone without complicating your build or requiring specialized cables.

Technical Details of In Win ATX12V & EPS12V Power Supply

• Input Voltage: 120 V AC / 230 V AC
• Output Voltages: +3.3 V DC, +5 V DC, +12 V DC
• Maximum Power: 300 W
• Rails: 2 +12V rails
• Fan: 1 internal cooling fan
• Form Factor: Internal power supply compatible with ATX12V and EPS12V standards

How to install In Win ATX12V & EPS12V Power Supply

• Power down your PC, unplug from the wall, and open the case to access the existing power supply area.
• Remove the existing PSU if present, keeping track of the mounting screws for reuse.
• Position the In Win power supply in the case so the input panel aligns with the rear opening and the screw holes line up with the chassis.
• Secure the PSU with the appropriate screws, ensuring it is firmly mounted and stable.
• Connect the main power to the motherboard (ATX) and the CPU power via the EPS12V connector as needed, then attach power cables to storage, peripherals, and other components according to your motherboard and case guidelines.
• Route and manage cables to maintain good airflow and easy access for future upgrades or maintenance.
• Plug the system back in, power on, and verify voltages and stability using software tools or a multimeter; listen for abnormal fan noise or vibrations, and recheck cable connections if issues arise.

Frequently Asked Questions

• Q: What power does this supply deliver? A: It provides up to 300 W of total output across the 3.3 V, 5 V, and 12 V rails, with two +12V rails for higher-current loads.
• Q: What input voltages are supported? A: The unit accepts 120 V AC and 230 V AC inputs for regional compatibility.
• Q: How many fans does it have? A: The PSU includes a single internal cooling fan for thermal management.
• Q: Which rails are available? A: The power supply offers +3.3 V DC, +5 V DC, and +12 V DC rails to support various components and peripherals.
• Q: Is this compatible with ATX12V and EPS12V motherboards? A: Yes. It is designed to meet ATX12V and EPS12V standards for broad compatibility with standard desktop motherboards and CPU power requirements.