21.0TB (20.0TB HDD + 1.0TB NVMe) OWC miniStack STX Stackable Storage and Thunderbolt

21.0TB (20.0TB HDD + 1.0TB NVMe) OWC miniStack STX Stackable Storage and Thunderbolt Hub Xpansion Solution - Silver. Perfectly sized to seamlessly stack with the Mac mini and the ideal storage and connectivity expansion companion for Thunderbolt or USB equipped computers and devices 96W power delivery.