Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: KHOI1971 ® CAR charger power adapter + USB cable cord for PANDIGITAL R80B400 8 INCH SUPERNOVA TABLET
Product description: KHOI1971 CUSTOM MADE SUPER FAST SHIPPING
Product feature: SUPER FAST SHIPPING ++ITEMS ARE 100% FULLY TEST 100% FULL MONEY BACK GUARANTEE, Smart Fuse protection from sudden power surge, 110V~220V for USA Europe Asia 110v~240v, KHOI1971 12 MONTHS WARRANTY EXCHANGE
Product price: $10.94
Product brand: KHOI1971
Target attributes: Maximum Output
Answer: attribute: maximum output
value: None
source: None