8TB M.2 NVMe SSD ExpansionExpand your Mac Mini M4 capabilities with up to 8TB internal storage. Compatible with M.2 NVMe SSDs (2230/2242/2260/2280 sizes) for instant storage expansion. Enjoy blazing 10Gbps transfer speeds for large-file transfer. (SSD not included.) 10-in-1 Connectivity HubEquipped with 2×USB-A 3.2 (10Gbps), 2×USB-A 2.0(5Gbps),1× USB-C 3.2 (10Gbps),1×USB-C ChargeM.2 SSD slot, a UHS-II SD/TF card reader (170MB/s), and 3.5mm audio jack, this Mac Mini Dock can easily expand your device connection options.