Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: LG 8X DVD Rw- Bare Black/white
Product description: Whether you re at home, in the office, on a plane or even riding a roller coaster, you can burn DVDs wherever you go with the LG GSA-E50L Slim External Super Multi DVD Rewriter! Weighing in at only 0.84 lbs, this ultrathin drive is conveniently compact and all it needs to connect is a USB 2.0 port. Burn DVD R and DVD+RW at up to 8x, and CD-R and CD-RW at up to 24x speed.The GSA-E50L features SecurDisc Technology to protect and share your data safely, while it also comes with LightScribe Label Printing capabilities, so you can add your own customized design to each DVD you burn. In addition, this package includes Nero and CyberLink recording software to organize and manage your multimedia files.Order the LG 8x Slim External Super Multi DVD Rewriter today!These external DVD drives are new, open boxes. They may have fingerprints or small scratches from being opened and repackaged.
Product feature: LG GSA-E50L 8x Slim Super Multi DVD RW DL USB 2.0 External Drive General Features:, Black and silver case USB 2.0 external drive LightScribe labeling technology USB bus powered, 2 MB buffer 160 ms DVD-ROM access time 140 ms CD-ROM access time SecurDisc Technology, Nero and CyberLink software Write Speeds: 8x maximum DVD+R (CAV) 8x maximum DVD+RW (ZCLV), 8x maximum DVD-R (CAV)
Product brand: LG
Target attributes: Type
Answer: attribute: type
value: usb
source: product feature
attribute: type
value: external
source: product feature
attribute: type
value: usb
source: product description
attribute: type
value: external
source: product description