Smaller Footprint For Bigger Opportunities Small footprint makes the TS-431XeU an excellent choice for smaller racks and the unused space can be reserved for cabling or ventilation. The TS-431XeU is space-saving for flexible deployment and is especially suitable for multiple locations and applications including offices audiovisual rooms and security surveillance recording. SSD Cache Acceleration The TS-431XeU supports SSD caching to greatly boost the IOPS performance of storage volumes to increase operational efficiency. High Reliability Design Ensuring Business Continuity The business-ready TS-431XeU is designed to provide 24/7 operations and services. The support for comprehensive RAID configurations and hot-swapping allow for replacing hard drives without service interruption. QNAP\'s advanced RAID recovery technology also helps if any healthy drives are accidentally removed from a degraded RAID volume. Easily Expand Storage Capacity The TS-431XeU\'s storage capacity can be expanded as needed to meet the demands of rapidly-growing data making it ideal for storage-intensive applications such as video surveillance data archiving TV broadcast storage and more..