Mackertop

Mackertop 5.25V 3A Premium Power Supply for Raspberry Pi 3B+ | Solves "Lightning Bolt" Issue | Upgraded 1.8M (6ft) Cord

Name: Mackertop 5.25V 3A Premium Power Supply for Raspberry Pi 3B+ | Solves "Lightning Bolt" Issue | Upgraded 1.8M (6ft) Cord
Brand: Mackertop
Price: 22.0 USD
Availability: OutOfStock

$22.00 USD

Sale Sold out

⚡ Stop the "Lightning Bolt" Icon Forever.

Is your Raspberry Pi 3B+ throttling? Seeing the yellow undervoltage warning? The Mackertop 5.25V Adapter is engineered to solve this specific problem. Now upgraded with a Heavy-Duty 1.8M (6ft) Cable.

Choose How You Buy

Support Our Brand Direct

✅ Priority Handling
✅ Free Shipping on Orders $35+

(Click "Add to Cart" above)

Prefer Amazon Prime?

📦 Fast 2-Day Shipping
⭐ Trusted Returns

Buy on Amazon US

Why 5.25V Instead of 5V?

Standard 5V chargers often drop to 4.8V under heavy load, causing your Pi to freeze or throttle speed. Our adapter outputs 5.25V to compensate for voltage drop across the cable. It ensures your board receives a clean, stable 5V+ even when overclocked or powering USB hard drives.

⭐⭐⭐⭐⭐ "No more low voltage warnings."

"This is the best power brick for the Raspberry Pi 3B+. No more low voltage warnings. Everything ran at full speed."
— Bill D. (Verified Purchase)

Perfect for NESPi & RetroFlag Cases

Custom cases like the NESPi have internal wiring that creates resistance. Generic chargers fail here. The Mackertop 3A supply punches through that resistance, making it the #1 community-recommended choice for RetroPie builds.

⭐⭐⭐⭐⭐ "Essential for RetroFlag cases"

"Fixed under volt issues on NESPI case!!! Essential for anyone using a RetroFlag case."
— Dennis (Verified Purchase)

Reliable Power for 3D Printing (OctoPrint)

Don't risk a failed print 10 hours in. This power supply provides a true 3 Amps current, enough to power your Raspberry Pi 3B+, a webcam, and a touchscreen simultaneously without breaking a sweat.

⭐⭐⭐⭐⭐ "Printer is working perfectly"

"I kept getting low voltage warnings in OctoPrint... In the weeks since swapping it in, I have seen no warnings and my printer is working perfectly."
— Doctor Chocolate (Verified Purchase)