Specifically designed for use in NAS systems with up to 8 bays</br>Tested for 24x7 reliability. Date on item is manufacturing date.</br>NASware firmware for compatibility</br>3-year limited warranty</br>Small and home office NAS systems in a 24x7 enviornment</br>Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary.</br>Ships in WD-certified box for safe transit during shipping</br></br>Product Description</br></br>Capacity: 3 TB Rotational Speed (RPM): IntelliPower Microsoft operating systems prior to Vista, 32-bit operating systems, and Mac systems prior to OSX 10.4 may not support volumes greater than 2TB. To recognize the full capacity of this drive, you may need multiple partitions. Check with the manufacturer to verify your system's compatibility. Interface: SATA3 Data Transfer Rate: 6 Gb/s Buffer to Host (max); 145 MB/s Host to/from drive (typical) Form Factor: 3.5 inch Read/Write: 4.4 Watts Standby: 0.6 Watt</br>