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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
ZWO 12V 5A AC to DC Power Adapter
ZWO 12V 5A AC to DC Power Adapter
ZWO 12V 5A AC to DC Power Adapter
ZWO 12V 5A AC to DC Power Adapter

ZWO 12V 5A AC to DC Power Adapter

by ZWO
SKU ZWO-AC-DC12V5A
$29.00 - $29.00
$29.00
$29.00 - $29.00
$29.00
Price Match Policy!
  • Output: 12V DC, 5A
  • Input: 100-240V AC, 50/60Hz
  • DC Connector: 5.5mm x 2.1mm, Center Positive
  • Compatible with ZWO Cooled Cameras and AM Mounts
10 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Stable Power for Critical Sessions — The ZWO 12V 5A AC to DC Power Adapter

    The ZWO 12V 5A AC to DC Power Adapter is the official, manufacturer-recommended solution for a common astrophotography problem: unstable or insufficient power that can compromise a long imaging session. This unit is specifically designed to provide the consistent voltage and ample current required by ZWO's thermoelectric cooling systems, electronic filter wheels, and harmonic drive mounts, eliminating dropped frames, connection errors, and inconsistent cooling caused by underpowered supplies.

    The AC portion of the cable (from the wall connector to the power brick) is approximatively 178cm. The DC portion of the cable (from the power brick to the 2.1 x 5.5mm connector) is approximatively 122cm.

    Engineered for High-Current Demand

    A cooled CMOS camera's biggest power draw comes from its thermoelectric cooler (TEC). The ZWO 12V 5A adapter delivers a full 5 amps of current, ensuring the TEC can reach and maintain its target delta temperature without starving the sensor or control board. This stable supply is the foundation for low-noise imaging, as it prevents thermal fluctuations that can introduce artifacts into your calibrated frames.

    This high-current capability is equally critical for ZWO's AM series harmonic drive mounts. The motors require consistent power to execute precise slews and maintain accurate tracking. Using a lower-amperage adapter can lead to motor stalls or tracking errors, especially under heavy loads, but this 5A unit provides the necessary overhead for reliable performance all night.

    Universal Voltage for Global Use

    For astronomers who travel to dark-sky sites or live outside North America, the adapter's 100-240V AC input provides essential flexibility. It automatically adjusts to the local line voltage, whether you are at a star party in the desert or imaging from a backyard in Europe. This removes the need for a separate, heavy step-down voltage converter, simplifying your travel kit.

    The only consideration for international use is a passive plug adapter to match the local wall socket configuration. The internal power conversion handles the rest, ensuring your ZWO equipment receives the same stable 12V DC power regardless of where you are in the world.

    The ZWO Standard 5.5x2.1mm Connector

    ZWO has standardized its power inputs around the 5.5mm x 2.1mm center-positive barrel connector. This adapter is built with that exact plug, guaranteeing a secure, electrically sound connection to your ZWO ASI cooled camera, ASIAIR, EAF, or AM mount. This eliminates the guesswork and potential damage associated with using a generic adapter with the wrong polarity or a loose-fitting plug.

    The secure fit prevents accidental disconnection in the dark, a small but critical detail that can save an entire night's worth of data. By using the official adapter, you ensure the power link in your imaging train is as reliable as the data connections.

    A Simple, Necessary Upgrade Over Generic Supplies

    While many 12V adapters exist, most are not designed for the sustained, high-current loads of astrophotography equipment. This ZWO adapter is the recommended power source because it has been tested and verified to meet the specific demands of their products. It represents a small but significant investment in the stability and protection of your entire imaging system.

    The primary trade-off is its single purpose. This is not a generic, multi-voltage adapter with interchangeable tips. It is designed to do one job perfectly: power ZWO astronomy gear safely and consistently, which is precisely the reliability required when expensive equipment is on the line.

  • Is the ZWO 12V 5A adapter required for my cooled camera?

    Yes, this adapter or an equivalent 12V 3A-5A power source is necessary to run the camera's TEC cooling. The camera can be powered over USB for basic sensor operation, but cooling will not function without a separate 12V supply.

    Can I use this adapter to power an ASIAIR Plus or Pro?

    Yes, this adapter is fully compatible and provides ample power for the ASIAIR unit and any devices connected to its 12V DC output ports, as long as the total draw does not exceed 5 amps.

    Will this power adapter work with my ZWO AM5 or AM7 mount?

    Absolutely. The 12V 5A output is the recommended specification for powering ZWO's AM series harmonic drive mounts, ensuring the motors have sufficient current for slewing and tracking.

    What is the difference between this and a generic 12V 5A power supply?

    This ZWO-branded adapter is verified by the manufacturer to provide clean, regulated power and uses the correct 5.5x2.1mm center-positive connector. While a generic adapter with matching specs may work, this official unit eliminates risks from unstable voltage or incorrect polarity that could damage your equipment.

    My country uses 220V power. Will this adapter work?

    Yes, the adapter accepts a universal input of 100-240V AC. You will only need a simple mechanical plug adapter to fit your local wall outlet; no voltage converter is required.

  • Product ZWO 12V 5A AC to DC Power Adapter
    Input Voltage 100-240V AC
    Input Frequency 50/60 Hz
    Output Voltage 12V DC
    Output Current 5A
    DC Plug Type 5.5mm x 2.1mm Barrel Connector
    DC Plug Polarity Center Positive
    Compatibility ZWO Cooled Cameras, ASIAIR, AM Mounts, EAF, EFW
    Length AC Cable: 178mm
    DC Cable:122cm
    • ZWO 12V 5A Power Adapter Brick

      12V 5A Power Adapter

      × 1

    • AC Power Cord for ZWO Adapter

      AC Power Cord

      × 1

  • ZWO 2-Year Warranty