QNAP Systems (威联通科技股份有限公司) is a company that provides Network-attached Storage (NAS) and video surveillance solutions. Its services include cold data storage, storage for virtualization, file sync and collaboration, drive health diagnostics and prediction, managed service provider (MSP) solutions, saas backup, email backup and management, central storage for video collections, full-text searches for NAS files, VPN servers and clients, virtual router, product security, etc. The company offers NAS products for home and business users, providing solutions for storage, backup/snapshot, virtualization, teamwork, multimedia, etc.