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The YLPS051200B-US is a specific model number for a Yealink 5V/1.2A AC/DC Switching Power Supply Adapter, used to provide power to various Yealink IP phones, featuring a 5.5x2.1mm barrel connector and standard US plug, ensuring devices like the T41S, T42S, and T53 IP phones receive consistent power.

Key Specifications:

Brand: Yealink

Type: AC/DC Power Adapter

Input: 100-240V~250mA 50-60Hz (standard AC wall power)

Output: 5V (Volts) / 1.2A (Amperes)

Connector: 5.5x2.1mm barrel tip

Compatibility: Powers Yealink IP phones (e.g., T27G, T41S, T42S, T53, T53W)

This power supply is compatible with a range of Yealink devices:

Yealink T21, T26, T28, T42, T42S, T42G, T46S, T48S SIP IP phones

Yealink W80B, W80DM

Purpose:

This adapter is essential for IP phones that don't support Power over Ethernet (PoE) or when a PoE switch isn't available, allowing them to operate from a standard wall outlet.