1.8" Rocstor USB Aluminum HDD Enclosure for Hitachi 1.8" 1.8-inch Rocstor USB Aluminum HDD Enclosure for Hitachi 1.8-inch Drives General Features: For 1.8-inch Hitachi drives USB interface Aluminum shell casing Lightweight Dimensions: 0.3 x 2.5 x 3.5-inches (H x W x D, approximate) Regulatory Approvals: FCC CE