G-DRIVE PRO 4TB SDPH51J-004T-MBAAD Features: Daisy-chaining for up to 5 devices High-speed data transfers Premium, all-aluminum enclosure Ultrastar™ Enterprise-class Hard Drive Inside Mac ready, Apple Time Machine compatible 5-year limited warranty Specifications: Capacity 4 TB Interface USB 3.2 Gen 1 Thunderbolt™ 3 Transfer Rate up to 250MB/s Compatibility macOS 10.12+ Windows 10+ (via reformat) Dimensions (L x W x H) 210.06mm x 130.05mm x 45.47mm In The Box G-DRIVE PRO External Hard Drive AC power adapter Power cable Thunderbolt™3 cable (20 Gbps) USB-C to USB-A™cable (backwards compatibility USB 3.0) Quick Start Guide