M. 2NVMe x4 high-speed interface, can split multiple M. 2 hard drives through the adapter boardM. 2 WiFi slot supports Bluetooth/WiFi6 wireless receiving block; M. 2 WiFi interface supports adapter board expansion M. 2NVMe or mSATA solid state diskThe M. 2 x4 interface supports the expansion of 2 M. 2 NVMe x1 adapter boardsTF card holder supports data storage or system boot 2*small 4PIN fan, fan power supply base supports temperature control fanIf you need to customize the LOGO on the panel, please contact customer service and provide free laser laser engraving (PS: laser-engraved machines do not support returns).