Additional Details ------------------------------ Product description: GSDT is the only manufacturer that makes this product. This Replacement power supply adapter is compatible with OEM Power Supply P/N: 1465-42340-001. Input: 100-240VAC; 50-60Hz and Output: 24 V DC/500mA provides AC power to the Polycom SoundPoint IP phones. You will be satisfied by using our product; You will be amazed by our product quality and services.