Sonnet Thunderbolt 2 Upgrade Card for the xMac mini Server 1G

The BRD-UPGRTB2-XM Thunderbolt 2 Upgrade Board for xMac mini Server from Sonnet is designed to upgrade an existing  10 Gb/s Thunderbolt xMac mini Server to 20 Gb/s Thunderbolt 2. You can simply replace the existing Thunderbolt interface board with the BRD-UPGRTB2-XM Upgrade Board, and your xMac mini Server will support the new Mac mini’s Thunderbolt 2 interface at full speed. A Thunderbolt 2-upgraded xMac mini Server works conveniently with an existing Mac mini Server.