Product_description: ['100% Genuine- Computer/Laptop Replacement or Internal parts<br>Part Number: ME540A-ST<br>ME540A-ST<br> The 80-W AC-power-supply module is an autoranging unit that supports input voltages between 85 and 264 VAC. The DC-power-supply module has dual input feeds (A and B) and supports input voltages between -36 to -72 VDC for telecom applications and +18 to +36 VDC for industrial applications.<br> <br> The AC-power-supply modules ship with a power cord to connect to an AC-power outlet. The DC-power-supply module ships with a terminal block to be wired for DC-power outlet connections.<br> <br> Each power supply is cooled by internal fans. For maximum efficiency, at least two of the four fans should be operational in a warm environment. A fan failure triggers an alarm. When a fan fails, replace the power supply immediately. <br><b>Note:</b><br>Picture may not match actual product. Please ensure that your original part number matches this exactly, or check with the manufactuer for compatiblity. Customers are responsible for compatiblity.'] (Page 1)