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: Sony Optiarc AD-7261S - DVD+/-RW (+/-R DL) / DVD-RAM Drive - Serial ATA (2690884) Category: DVD Drives
Product description: Item #: 2690884. The AD-7261S burns DVD+R/-R discs at amazing 24x speed, delivering a full DVD in 4 minutes and below! Double/dual layer discs are written with 12x, and DVD-RAM burning, with an eye towards data backup, is also supported at 12x. Slot-in CD-Rs recorded by the AD-7261S and enjoy the refined CD sound quality. The drive features a SATA interface for easy installation into today's desktop PC cases., Device Type: DVD?RW (?R DL) / DVD-RAM drive Enclosure Type: Internal Enclosure Color: Black Interface: Serial ATA Dimensions (WxDxH): 5.8 in x 6.7 in x 1.7 in Weight: 1.3 lbs Optical Storage: DVD?RW (?R DL) / DVD-RAM - 5.25 x 1/2H Read Speed: 48x (CD) / 16x (DVD) Write Speed: 48x (CD) / 24x (DVD?R) /12x (DVD?R DL) Rewrite Speed: 32x (CD) / 6x (DVD-RW) / 8x (DVD+RW) / 12x (DVD-RAM) Disc Labeling Technology: LightScribe Technology Buffer Underrun Protection: Yes Microsoft Certification: Compatible with Windows 7"" Customers also search for: Technology\Computer Components\Drives and Storage\DVD Drives Discount Sony Optiarc AD-7261S - DVD+/-RW (+/-R DL) / DVD-RAM Drive - Serial ATA, Buy Sony Optiarc AD-7261S - DVD+/-RW (+/-R DL) / DVD-RAM Drive - Serial ATA, Wholesale Sony Optiarc AD-7261S - DVD+/-RW (+/-R DL) / DVD-RAM Drive - Serial ATA, AD-7261S-0B, DVD Drives
Product feature: Sold Individually
Product brand: Sony
Target attributes: Type
Answer: attribute: type
value: serial ata
source: product description
attribute: type
value: internal
source: product description
attribute: type
value: serial ata
source: product title
attribute: type
value: sata
source: product description