Super Power Supply&reg; AC / DC Adapter Charger Cord for WD Western Digital My Book : WDBAAF0010HBK-01, WD10000H1NC-00 1 Essential Home Edition External Hard Drive Wall Barrel Plug Input: 110-220V Output: 12V 2A Warranty: 1 Year Super Power Supply products are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply