I don't think the Nexus 10 can power a hard drive. This is the cable I bought and works perfectly with flash drives and card readers. Fosmon Micro USB OTG to USB 2.0 Adapter for Samsung Galaxy S4 S IV GT-I9500 / S3 I9300 / SII / S2 Skyrocket, Galaxy Nexus, Galaxy Note, Google Nexus 4, Nexus 7" &...