The D4-320 hard drive enclosure supports high-speed data transmission up to 10Gbps using the USB 3.2 Gen2 protocol and is compatible with various hard drives, including SATA hard drives and SSDs. The D4-320 USB storage is plug-and-play compatible with MAC, Windows, and Linux operating systems and supports 4 individual disks without RAID function. The D4-320 HDD enclosure supports hot swapping for easy hard disk replacement without powering off the device. The D4-320 external HDD enclosure features a tool-free hard drive tray design and TerraMaster's unique Push-lock design for secure installation and removal of hard drives. The D4-320 direct attached storage incorporates an intelligent temperature-controlled fan for optimal heat dissipation and specialized sound-absorbing panels and vibration damping measures for quieter operation.