Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: KINGWIN ABT-610MM 610-WATT PSU POWER SUPPLY W/ 120MM COOLING FANß
Product description: 610-WATT PSU POWER SUPPLY W/ 120MM COOLING FAN
Product feature: Picture may not match actual product. Please contact Seller for more detailed pictures in the event of an unclear image., 610-WATT PSU POWER SUPPLY W/ 120MM COOLING FAN, Many of these parts and models are old; please contact the individual sellers if more details are needed.
Product brand: Kingwin
Target attributes: 80 PLUS Rating
Answer: attribute: 80 plus rating
value: None
source: None