This USED Power Key Circuit is a compact replacement module designed to convert a physical press into the proper power-on signal your device’s mainboard expects. Built for repair projects and refurbishments, it provides a cost-effective path back to reliable startup behavior without replacing an entire motherboard.

• Compact, adaptable form factor — designed to fit into tight chassis spaces and align with standard power-switch headers on many boards and embedded systems.
• Accurate power-on signaling — interprets a button press and delivers the correct control input to the mainboard, preserving typical wake and boot timing.
• Versatile use cases — ideal for laptops, mini PCs, all-in-one units, or DIY electronics projects that rely on a dependable power key input.
• Economical replacement — a smart alternative to full OEM parts, aimed at repair technicians and hobbyists who value affordability without sacrificing function.
• Used, inspected condition — cleaned and checked for obvious faults; cosmetic wear may be present, but the critical power-on function is the focus of this listing.

Why this part matters for you:

• Repair faster — swap in the circuit to restore wake and boot sequences quickly, reducing downtime on devices that won’t start due to a failing power key path.
• Extend device life — replacing the power-key circuit can delay more invasive motherboard replacements, helping devices stay usable longer.
• Great for refurb projects — use in remainder projects, test rigs, or educational setups where a reliable power button input is essential.

Compatibility and installation tips:

• Identify your device’s power-key/header interface and confirm the circuit’s footprint aligns with the board’s mounting and connector layout.
• Power down the unit and follow standard ESD precautions when handling the board.
• If your wiring uses non-standard connectors, you may need a simple adapter or light rework to match your existing harness.

Included: 1x USED Power Key Circuit board. This listing covers the board only; connectors, cables, and enclosures depicted in photos are not guaranteed unless explicitly stated.