Power Replacement for Sophos XGS Firewall Appliances

When a Sophos XGS firewall loses its external power adapter, finding a replacement with the correct output rating and locking DC connection is more important than simply matching the wattage. The FSP150-AHAN3 provides 150W of 12V DC power at up to 12.5A and is specifically associated with the Sophos XGS 116, XGS 116w, XGS 126, XGS 126w, XGS 136, and XGS 136w firewall platforms.

Sophos regulatory documentation identifies the FSP150-AHAN3 as an adapter used with these XGS models and lists the corresponding Sophos adapter reference EA11701E-1200. The adapter provides a wide 90–264V AC input range and uses the locking DC connector configuration identified for this product version.

Technical Specifications

OEM Replacement Compatibility

This power adapter is associated with the following Sophos and FSP power-supply references:

• FSP FSP150-AHAN3
• Sophos EA11701E-1200

Sophos regulatory documentation specifically identifies EA11701E-1200 and FSP150-AHAN3 as the adapter references for the XGS 116 / 116w and XGS 126 / 126w / 136 / 136w platforms. This provides a documented replacement relationship rather than a compatibility assumption based only on voltage and wattage.

Compatible Sophos Firewall Models

• Sophos XGS 116
• Sophos XGS 116w
• Sophos XGS 126
• Sophos XGS 126w
• Sophos XGS 136
• Sophos XGS 136w

These models are part of Sophos' first-generation XGS desktop firewall platform. Sophos documentation identifies the XGS 116/116w as requiring 12V DC at up to 12.5A and lists EA11701E-1200 / FSP150-AHAN3 as the adapter reference. The corresponding Sophos certification for XGS 126/126w and XGS 136/136w lists the same adapter references and 12V / 12.5A specification.

Why the Locking Connector Matters

This version of the FSP150-AHAN3 is equipped with a 5.5mm × 2.5mm locking DC barrel plug. The locking mechanism helps secure the DC connection to compatible equipment and reduces the possibility of accidental connector movement during normal operation.

For replacement purposes, connector dimensions alone should not be treated as sufficient proof of compatibility. Confirm the equipment model, 12V DC requirement, current requirement, connector size, locking mechanism, and polarity before installation.

Firewall and Network Security Applications

The FSP150-AHAN3 is particularly relevant to network security appliances that use an external high-current 12V power source. Its documented relationship with the Sophos XGS 116, 116w, 126, 126w, 136, and 136w makes it a useful replacement option for organizations maintaining these first-generation desktop firewall platforms.

For IT administrators, MSPs, network installers, and equipment maintenance teams, matching the documented adapter reference can simplify replacement work when an original external power supply is damaged, missing, or no longer providing stable power.

Power and Replacement Logic

The FSP150-AHAN3 is rated at 12V DC and 12.5A, providing up to 150W of output power. The electrical rating corresponds directly with the 12V DC / 12.5A maximum input specification documented for the supported Sophos XGS firewall models.

A power adapter should not be selected on wattage alone. For a reliable replacement, the output voltage must match, the available current must be sufficient, and the connector and pin configuration must correspond to the equipment. The documented FSP150-AHAN3 / EA11701E-1200 relationship provides an additional identification point when replacing a Sophos XGS power adapter.

Important Compatibility Note

This listing specifically identifies the first-generation Sophos XGS models documented with FSP150-AHAN3: XGS 116, XGS 116w, XGS 126, XGS 126w, XGS 136, and XGS 136w.

Sophos also has second-generation desktop models including XGS 118/118w and XGS 128/128w. These models should not be assumed to use the FSP150-AHAN3 solely because their model numbers are successors to the 116/126 platforms. Verify the adapter reference on the equipment before ordering.

Frequently Asked Questions

What is the output of the FSP150-AHAN3?
The FSP150-AHAN3 provides 12V DC output at up to 12.5A, with a rated power capacity of 150W.

Which Sophos XGS models are confirmed for this adapter?
The documented compatible models are Sophos XGS 116, XGS 116w, XGS 126, XGS 126w, XGS 136, and XGS 136w.

What Sophos power-supply reference is associated with FSP150-AHAN3?
Sophos regulatory documentation identifies EA11701E-1200 together with FSP150-AHAN3 as the adapter reference for the supported XGS firewall models.

What connector does this version use?
The version offered here uses a 5.5mm × 2.5mm locking DC barrel plug. Verify the connector and locking mechanism against the existing adapter or firewall before installation.

Can FSP150-AHAN3 be used with Sophos XGS 118 or XGS 128?
Do not assume compatibility with XGS 118/118w or XGS 128/128w based only on the model sequence. These are second-generation models, while the documented FSP150-AHAN3 relationship applies to the first-generation XGS 116/126/136 platforms.

Can a 150W 12V adapter replace FSP150-AHAN3?
Not necessarily. A replacement must also have the correct connector, locking configuration, polarity, pin arrangement, and sufficient current capacity. Matching 150W alone does not establish compatibility.

FSP FSP150-AHAN3 is a 150W AC/DC desktop power adapter providing 12V DC at up to 12.5A for compatible network security and ITE equipment. Sophos regulatory documentation associates FSP150-AHAN3 and the Sophos adapter reference EA11701E-1200 with the XGS 116, XGS 116w, XGS 126, XGS 126w, XGS 136, and XGS 136w firewall appliances. The version described here uses a 5.5mm × 2.5mm locking DC barrel plug and is intended as a replacement power supply when the electrical specifications and connector configuration match the existing Sophos XGS installation.

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