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: SanDisk Cruzer Crossfire 4GB USB 2.0 Flash Drive (Blue)
Product description: Carry up to 4 GB of data with you wherever you go with the SanDisk Cruzer Crossfire flash drive! Designed to make your PC gaming experience portable, you can use this SDCZG-4096-E11 drive with any device that has a USB port. Use it with your Xbox 360 for photo viewing, listening to music, playing .wmv videos, and configuring your wireless settings. Store digital files, videos, pictures, and more, then share them with ease thanks to the SanDisk Cruzer Crossfire flash drive! Order your SDCZG-4096-E11 today!
Product feature: SanDisk Cruzer Crossfire Flash Drive General Features: 4 GB storage capacity Blue color, USB 2.0 interface (Backwards compatible with USB 1.1) Compatible with Xbox 360 Plug and Play, Easily transport your digital media! Attach it to the included lanyard so you won't lose it!, Dimensions: 2.3 x 0.8 x 0.3-inches (H x W x D, approximate) Regulatory Approvals: C-Tick FCC CE, WEEE
Product brand: SanDisk
Target attributes: Capacity
Answer: attribute: capacity
value: 4gb
source: product title
attribute: capacity
value: 4 gb
source: product feature
attribute: capacity
value: 4 gb
source: product description