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: Xfx Geforce 7950GT 512MB DDR3 Dual Dvi 570M Pcie Fansink
Product description: The GeForce 7900 GPU delivers smooth, high-definition video playback and crisp picture quality thanks to its advanced nVidia PureVideo technology. Built to deliver mind-blowing graphics performance on even the most graphics intensive games, the Geforce 7 series GPUs features a nest-generation superscalar architecture and an all-new nVidia CineFX 4.0 engine. The CineFX 4.0 engine includes a redesigned vertex shader unit that shortens the time required to set up complex geometry processing. GeForce 7 Series CPUs deliver a next level of performance at extreme HD resolutions up to 2560x1600, making big-screen, high-definition gaming a reality. The Geforce 7 Series GPUs are designed to reach even higher levels of performance through nVidia SLI and nVidia Quad SLI technology. With nVidia SLI, you can combine two Geforce 7 Series-based graphics cards in a single system to scale performance by up to 4x. Through an intelligent combination of software and hardware, nVidia SLI is able to offer this unbelievable performance on today's top PC game titles. 1.1 Billion Vertices Per Second 24 Pixels per Clock (peak) 570 MHz Core Clock 1460 MHz Memory Clock 400 MHz RAMDACs 512MB Video Memory GDDR3 Memory Type PCI Express Interface Type 16x Interface Speed Dual DVI & HDTV Connectors Dual Link DVI - Supporting digital output up to 2560x1600 Multiple Monitors Support
Product feature: Box Content - XFX GeForce 7950 GT Extreme 512MB, PCIe Video Card, User's Manual, Drivers CD, Tom Clancy's Ghost Recon - Advanced Warfighter CD, HDTV Cable, Power Connector, S-Video Cable, Two DVI to VGA Adapters, GeForce 7950 GT Graphics Core, 256 bit Memory Interface, 44.8 GB/sec Memory Bandwidth, 13.2 Billion Pixels/sec Fill Rate
Product brand: XFX
Target attributes: Power Connectors
Answer: attribute: power connectors
value: None
source: None