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Shure PS21US In-Line Power Supply 120V — main product image
Shure

Shure PS21US In-Line Power Supply 120V

★★★★★4.7 (119 reviews)

Reliable 120V in-line power supply for Shure mixers, PSM receivers, and wireless receiver systems.

$29.95*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Shure PS21US In-Line Power Supply is a purpose-built 120V AC power source designed to keep your compatible Shure audio equipment running reliably. Whether you're powering an FP33 field mixer on a film set, an SLX4 wireless receiver in a house of worship, or a P4M personal monitor receiver on stage, the PS21US delivers clean, stable power through its 3-pin connector. Its in-line form factor keeps it neatly integrated into your cable run rather than taking up space at the outlet with a bulky wall wart.

As a genuine Shure accessory, the PS21US is engineered to match the exact voltage and current requirements of its compatible devices, including the 200M, FP22, FP24, FP33 mixers, P4M and P4T PSM receivers, and the SLX4, T3, T4V, T4G, T4N, T88, and LX88 wireless receivers. This makes it an ideal replacement or backup power supply for professionals who depend on their Shure equipment in critical audio environments.

Key Features

Shure Model#PS21

Specifications

Brand
Shure
Model
PS21US
Input Voltage
120V AC
Connector Type
3 Pin
Color
Black
Compatible Mixers
200M, FP22, FP24, FP33
Compatible PSM Receivers
P4M, P4T
Compatible Wireless Receivers
SLX4, T3, T4V, T4G, T4N, T88, LX88

Pros & Cons

👍 Pros

  • Broadly compatible with a wide range of Shure mixers and wireless receivers.
  • In-line design keeps the power connection tidy and out of the way.
  • Provides stable, consistent power output for reliable audio performance.
  • Genuine Shure accessory ensures proper voltage and connector fit.

👎 Cons

  • Limited to 120V AC input, so it cannot be used internationally without a voltage converter.
  • Only compatible with specific Shure models, not a universal power supply.
  • The 3-pin connector style may feel less secure than locking connectors in mobile or live setups.
  • No included cable management or strain relief accessories.

Frequently Asked Questions

The PS21US is compatible with the 200M, FP22, FP24, and FP33 mixers, P4M and P4T PSM receivers, and the SLX4, T3, T4V, T4G, T4N, T88, and LX88 wireless receivers.
The PS21US requires a 120V AC input, making it suitable for standard North American wall outlets.
It uses a 3-pin connector to interface with compatible Shure equipment.
No. The PS21US is rated for 120V AC input only and is not compatible with higher-voltage outlets without an appropriate step-down transformer.
Yes, the PS21US serves as a direct replacement in-line power supply for the compatible Shure models listed.

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