Multi-Functional Mini-Computer Kit Designed for 5, Aluminum Alloy Case for PCIe Adapter B For 5 Computer Desktop Kit, for 5 M.2 Hat Case, Expandable Design: Features a versatile PCIe expansion slot, supporting adapters for enhanced functionality. Dual 4K Outputs: Equipped with dual ports, this mini-computer kit delivers stunning 4K visuals. Strong Expandability: Large internal space allows for easy installation of HATs and additional peripherals. Efficient Heat Dissipation: Designed with airflow vents and supports installing a cooling fan for optimal temperature management. Easy Assembly: Comes with necessary screws for a straightforward build process. Note:Due to different production batches, there are differences in appearance, which does not affect the use. Type:B Colour:Black Material:Aluminum Alloy Package Contents: 1 x PCIe Adapter Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.