Cavalry CAXA3701T0 1 Terabyte (1TB) USB 2.0/eSATA 3.5" External Hard Drive (Silver) Cavalry CAXA3701T0 1 Terabyte (1TB) USB 2.0/eSATA 3.5-inch External Hard Drive General Features: Silver profile Slim and lightweight stackable design 1 TB (terabyte) capacity Aluminum case USB 2.0 and eSATA interfaces Pre-formatted to NTFS Up to 480 Mbps data transfer with USB 2.0 Up to 300 Gbps data transfer with eSATA Exceptional heat dissipating ability Near silent operation Compatible with Windows and Mac systems - AC adapter (100 - 240V, 50/60Hz, Output: 12V 2A)