Commodore C128 PSU

Commodore C128 PSU by Electroware: to protect your Commodore 128 system from the killing voltages coming out of the 35 years old Commodore "brick of death" PSU!

Stay original! Buy only genuine Electroware PSU gear and beware of fancy, cut-down clones flooding eBay & the web.

GET READY FOR NEW C128 PSU

The original Commodore power bricks are a well-known failure point. While the C128 shipped with a better PSU than the C64, age still takes its toll. Here is the modern, safe replacement power supply for Commodore 128/C128C – built with the rare rectangular 5-pin DIN plug and designed to protect your machine from overvoltage and ripple.

Our C128 PSU provides stable, filtered 5 V DC (up to 4.0 A) from an industrial-grade AC/DC module and true 9 V AC (1.1 A) from a heavy-duty linear transformer. Everything is integrated in a compact enclosure ~2× smaller than the original C128 PSU, with proper ventilation, mechanical protection and electrical isolation – a drop-in, community-approved replacement.

THE SCOPE OF THE CLONE HUNTING GAME

For years we’ve listened to the community and iterated relentlessly. This is our 12th revision – designed by active C64/C128/Amiga users and refined with real feedback from around the world. The result is an industry-standard replacement PSU trusted by the retro community.

Sadly, our concept has been copied and cut down by sellers chasing “easy” profit – fancy cases and big slogans don’t equal safety. Choose the original Electroware design: proven protection circuitry, correct analog fundamentals (real 9 V AC), high-quality components and repeatable, tested performance.

THE FULL FEATURED C128 PSU

• Commodore C128 compatible
• Stabilized & filtered 5 V DC up to 4.0 A (20 W)
• 9 V AC up to 1.1 A (10 VA) via real heavy-duty transformer (new model – voltage now matches the original)
• Carefully calibrated for C128 reference load
• Multiple active & passive protections (over-current / over-voltage)
• Fully isolated, fused on AC and DC side
• Power On/Off switch
• Status LED (green for 5 V DC)
• Long output cable (1.8 m) with rectangular 5-pin DIN plug
• Detachable input AC cable for UK and EU (cable included)
• Fixed input AC cable for USA and AU versions
• Weight only ~0.6 kg (≈2× lighter than the original)
• Runs cool and quiet

UNIQUE FEATURES & QUALITY

Stay with original Electroware products to gain top build quality and usability unavailable with clone PSUs:

• Real ON/OFF switch – save energy and preserve vintage main switches
• Detachable AC input cable for EU & UK (longer cables supported); fixed 1.8 m cable for US/AU variants
• Clear status LED (green)
• 100% serviceable by qualified technicians; spare parts available
• All cables use industrial, detachable wire-to-board connectors – no risky direct wire-to-board soldering

POKE LEVEL UP WITH "ADJUST & PROTECT MODULE" ADD-ON OPTION

The Adjust & Protect hardware enables safe fine-tuning of the 5 V rail within a limited range of ~4.9–5.3 V DC (measured with a C64C reference load). This lets you compensate cable/switch drops and tailor voltage for upgraded systems. The current Electroware PSU family is universal and 4 A capable – powering a C128 from a C64 PSU is possible with our C64→C128 adapter. Basic adjustment is especially useful when switching between lower-draw and higher-draw setups, as the C128 typically causes a larger voltage drop across cables, connectors and the power switch.

Looking for an even more advanced adjustable solution (wider range, higher precision, top-grade components, ultra-low ripple)? See our C64 PRO PSU model.

Purchasing the adjustable version? Great! For easier calibration use our C64/C128/VIC-II Voltmeter.

TRUST & RESPONSIBILITY

Every Electroware C128 PSU is triple-tested before dispatch: on original Commodore hardware and in burn-in with custom loads up to 150% of a typical C128. This guarantees safety, stability and long-term reliability.

By choosing the original Electroware you gain top build quality and unique features not found in clones – and you support our continuous development for the C= community worldwide.

Thank you for keeping classic hardware alive – with safe, authentic power.

 
Warning!

Risk of electric shock and energy hazard when opened. Service by qualified technicians only. Protect ventilation holes from foreign objects and liquids. Do not install near heat sources or in high ambient temperatures. Indoor use only; do not use outdoors, in dust or high humidity. Output current and wattage must not exceed rated values.

This replacement C128 PSU is designed exclusively for Commodore 128 vintage computer systems and should be considered an integral part of the C128. Do not connect to other devices. The manufacturer is not responsible for consequences of unauthorized repairs, modifications or misuse. A quality replacement PSU reduces failure risk but cannot guarantee full functionality of 35-year-old hardware.

Stay original! Choose genuine Electroware PSU gear and beware of overrated clones.