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: MyCableMart 50ft ELITE Toslink Digital Optical Audio Cable (SPDI/F), Metal Connector
Product description: Toslink is a connector format for fiber optic digital audio cables. A fiber optic digital audio cable carries audio data in the form of light impulses instead of electrical signals. The Toslink connector is a square plug and is used with newer Dolby Digital surround sound receivers, digital versatile discs (DVDs), and compact disk (CD) players, satellite dish receivers, and other devices. Connects any stereo or home theater system with Toslink digital audio port. Works with digital receivers, CD/DVD, MiniDisc players/recorders, or any other digital audio device with optical connectors. Toslink optical cables are the defacto standard for most stereos, home-theatres, TVs, Blue Ray, DVD/CD players, digital receivers, and satellite receivers. Product Features* GOLD-PLATED Polished Metal ConnectorsPrevents Corrosion and Provides for Maximum Protection of the Fiber Tip* HEAVY 6.0mm JACKET Helps Prevent Cable Damage and Provides Additional Strain Relief * Outer Cable Diameter: 6.0mm* Maximum Connector Outer Diameter: 13.3mm* Connector Length (Shell portion): 33.2mm* NYLON Braided Sleeve Jacket * Suitable for in-wall installation* TL1-5 Toslink Standard End Connectors* RoHS Compliant (Lead Free)* PRECISION POLISHED FIBER TIPS for Maximum Signal Transfer (includes tip protectors)
Product feature: GOLD-PLATED Polished Metal Connectors, HEAVY 6.0mm JACKET Helps Prevent Cable Damage and Provides Additional, Outer Cable Diameter: 6.0mm, Outer Cable Diameter: 6.0mm, Outer Cable Diameter: 6.0mm
Product price: $36.82
Product brand: My Cable Mart
Target attributes: Cable Type
Answer: attribute: cable type
value: optical cables
source: product description
attribute: cable type
value: toslink
source: product title