Available in capacities ranging from 1-14TB(1) with support for up to 8 bays | (1) 1MB = 1 million bytes, 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment. Supports up to 180 TB/yr workload rate(4) | (4) Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ? (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations. NASware firmware for compatibility Built for small or medium business NAS systems in a 24/7 environment 3-year limited warranty(2) | (2) See official Western Digital website for regional specific warranty details