Wireless hard drive external usb hard drive memory capacity 3 tb series western digital my passport wireless bus sata form factor 25 inch power supply mains features led indicator light onoff switch network capable wireless lan standards ieee 80211b ieee 80211g ieee 80211n ieee 80211ac battery life 10 h battery capacity 6 400 mah file format exfat colour black width 126 mm height 126 mm depth 24 mm manufacturers guarantee 24 months wei