Aluminum case is designed for P33 M.2 NVME M-Key PoE+ Hat. It can access to most of ports of Raspberry Pi Board. High-Speed NVMe SSD Support --- The HAT board supports M.2 NVMe SSDs for fast data access and storage. M.2 Interface --- Utilizes the PCIe interface for high-performance communication between the SSD and Raspberry Pi. Power over Ethernet (PoE+) Capability --- Streamlines the power supply setup by allowing the Raspberry Pi 5 to be powered through the Ethernet port. 5.1V/4.5A Output --- Ensures that the Raspberry Pi 5 and any connected peripherals receive adequate power for optimal performance. Active Cooler --- Pi5 Active Cooler combines an aluminium heatsink with a PWM fan to keep your Raspberry Pi 5 maintain optimal operating temperatures, ensuring reliable performance for various applications.