The Synology HAT3300-4T is a 3.5-inch SATA hard drive from the Plus Series, specifically engineered to work seamlessly within Synology storage systems. With a capacity of 4 TB, this drive utilizes 100% Conventional Magnetic Recording (CMR) technology, which provides the consistent performance and reliability needed for multi-user workloads. It operates at 5400 RPM and includes a 256 MB cache to help manage data flow efficiently. Designed for continuous 24/7 operation, the drive has undergone rigorous stress testing to ensure stability in a NAS environment. One of its most practical advantages is the deep integration with DiskStation Manager (DSM), allowing you to perform firmware updates directly through the software without having to remove the disk from your system. This makes it a dependable choice for users who need a stable, low-maintenance storage expansion for their home or office network.