HP MV2020 Media Vault 500 GB External Hard Drive 1-year limited hardware warranty, 90-day software warranty Centralize, back up and share data and media across your home network Stream media files to your home entertainment center (requires separately sold digital media player) Access up to three printers from PCs or laptops on your home network RAID 1 capability; 500 GB capacity upgradeable up to 1.2 TB with expansion bay