OMNIHIL AC/DC Power Adapter Compatible with Wd Western Digital External Hard Drive HDD My Book Essential: WDH1U7500N Extra Long 8 Foot Cord Adapter Rating: World Wide 100V ~ 240V 50/60Hz / Micro-USB 2.0 High Speed Cable High Quality PSU/Transformer / All products are tested to exceed/meet standard specification OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) FREE RETURN SHIPPING / 5 YEAR FREE REPLACEMENT WARRANTY