Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: PNY GeForce 8400GS 256MB DDR2 PCI-Express 2.0 DVI+VGA+HDTV/SDTV Low Profile Graphics Card VCG84R2SXPB
Product description: 2560x1600 Max Resolution / Low Profile Form Factor / PCI Express 2.0 x16 Interface / nVidia Chipset / HDCP Ready / Dual-Link DVI / Cooler with fan nVidia Quantum Effects physics processing technology One dual-link DVI output supports one 2560x1600 resolution display PCI Express 2.0 support OpenGL 2.1 support nVidia ForceWare Unified Driver Architecture (UDA)
Product feature: Box Contents - VCG84R2SXPB, Driver Disk, User Manual, HDTV Cable, S-Video Cable, DVI to VGA/D-sub Adapter, and L-P Bracket, Features nVidia unified architecture with GigaThread technology, Full Microsoft DirectX 10 Shader Model 4.0 support, 16x full-screen anti-aliasing, True 128-bit floating-point high dynamic-range (HDR) lighting
Product brand: PNY
Target attributes: Video Memory Type
Answer: attribute: video memory type
value: ddr2
source: product title