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: D-Link Wireless AC1900 Dual Band WiFi Gigabit Router (DIR-880L)
Product description: The DIR-880L AC1900 Wi-Fi Router lets you easily connect, control and monitor your network using the future of wireless technology, today. Advanced AC SmartBeam provides a significant increase in wireless performance, while Advanced Quality of Service (QoS) efficiently distributes bandwidth. The DIR-880L also comes with a dual-core processor and high-gain antennas. The DIR-880L is stylish, easy-to-use and comes IPv6-ready for a powerful network that you can rely on.
Product feature: Advanced AC1900 Wi-Fi Dual-Band (600N+1300AC Mbps Speed) performance, Lag free streaming using fast and reliable wireless, ethernet and USB performance, Advanced wireless AC beamforming dramatically enhances wireless signal strength and throughput, Gigabit WAN and LAN ports for high-speed wired connections, Two USB ports to connect storage drives and printers for sharing, Advanced Quality of Service (QoS), Smart Connect Technology will efficiently select the fastest Wi-Fi for every device
Product price: $5.34
Product brand: D-Link
Target attributes: Connectivity
Answer: attribute: connectivity
value: wireless
source: product feature
attribute: connectivity
value: wireless
source: product title
attribute: connectivity
value: wireless
source: product description
attribute: connectivity
value: wi-fi
source: product feature
attribute: connectivity
value: wi-fi
source: product description
attribute: connectivity
value: wifi
source: product title