4XDC Apple Macintosh SE/30 & SE Power Supply (PSU)

High-Reliability Quad-DC Retrofit Power Supply for Vintage Macintosh SE/30 & SE

The 4XDC Special Edition is our flagship AC-DC power supply designed for the Apple Macintosh SE/30 and SE, built using all-new, modern components. It features quad DC power outputs with separate power modules for each of the machine's voltage rails, providing ample power to exceed the original specifications.

It is an evolution of previous designs where the two +12 VDC rails are powered by their own power converter to minimize crosstalk between the sweep and disk rails. Some machine configurations may be more sensitive to this phenomenon, such as having a Micron Xceed internal grayscale video board installed.

Universal Design: Compatible with Apple (Singapore), Sony, and ASTEC versions of the power supply
4 Separate High-Quality Power Modules: Discrete regulation for each machine voltage rail
Auxiliary +5 VDC Connection: Direct bypass cable connection to logic board for high-draw accelerator boards
No Soldering Required: Plug-and-play retrofit keeps your original harness intact
Integrated Safety Fuse: External fuse for added safety and easy serviceability
Chassis LED Power Indicator: Internal light source, perfect for transparent SE cases
Sweep Rail Optimization: Dedicated footprint for installing a capacitor on the sweep voltage rail

$168.00USD

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AC Connector Type(Select Required)

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Auxiliary 5V Logic Board Tap Leads(Select Required)

Optional pre-wired 12" bypass cable for direct +5V logic board injection:

High-Voltage Safety Acknowledgment

Servicing vintage compact Macintoshes involves hazardous AC mains voltage and CRT anode capacitors (10,000V+). Disconnecting mains and discharging CRT is strictly required.

I acknowledge high-voltage hazards and assume personal responsibility.

California Prop 65: This hardware product may contain traces of lead used in electronics soldering. www.P65Warnings.ca.gov

● 1 units available for immediate bench packaging

Voltage Rail	Original Spec	TT Design 4XDC Spec	Architecture Benefit
+5 V	6 A	10 A (+66% headroom)	Powers CPU, RAM, and hungry PDS accelerator cards
+12 V (Disk)	2.1 A	2.5 A	Independent power converter prevents drive motor noise on video
+12 V (Sweep)	1.25 A	1.8 A	Discrete rail keeps CRT deflection sweep rock-solid with Micron Xceed
-12 V	0.5 A	0.850 A	Clean negative rail for audio circuit & serial ports