This is a high-quality metal enclosure designed specifically for Raspberry Pi 5 PCIe to M2 NVMe expansion board. The chassis retains all for Raspberry Pi 5 motherboard connectors. This enclosure is compatible not only with for Geekworm PCIe to NVMe SSD series expansion board, but also with third-party PCIe to NVMe expansion boards. The chassis' unique hollow design also meets the LED display requirements of most third-party PCIe to NVME boards. The only caveat is the height of the copper standoffs used by third-party PCIe to NVME boards, which must not exceed 17mm. The chassis also supports standalone installation of the for Raspberry Pi 5 and official and third-party heat sinks. Cooling: Supports installation of official and third-party for Raspberry Pi 5 heat sinks. Installation: for Raspberry Pi 5/ for Raspberry Pi 5 PCIe expansion board series. Installation Instructions: During installation, the copper standoffs/screws on the bottom of the for Raspberry Pi 5 must be replaced with the included 6mm copper standoffs, otherwise the holes will not align. Color: Black Material: Metal Package Contents: 1 * case 1 set * accessories (random colors, don't accept the specified color)