Super Power Supply&reg; AC / DC Adapter Charger Cord for Seagate Backup Plus Stca1000100 Stca2000100 Stca3000101 Stca4000100 ; Backup Plus for Mac Stcb2000100 Stcb2000900 Stcb3000100 Stcb3000900 ; Expansion Stbv1000100 Stbv2000100 Stbv3000100 ; Freeagent Goflex Home Stam1000100 Stam2000100 Stam3000100 ; Wa-18q12fu Ads-18e-12n 1dxap2-500 1dz9n4-500 ; 1tb 2tb 3tb 4tb Desktop External Hard Drive Wall Barrel Plug Input: 110-220V Output: 12V 2A Warranty: 1 Year Super Power Supply are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply