Sonnet today introduced a significant upgrade of its popular xMac mini Server, a Thunderbolt-to-PCI Express expansion system and 1U rackmount enclosure for a Thunderbolt-equipped Mac mini with a Thunderbolt port. The updated xMac mini Server now supports a double-width PCIe card's daughter card and includes BNC connector mounting holes on the enclosure's rear panel. In addition, the length of the xMac mini Server is now just 15.8 inches, optimizing it for a wider range of popular mobile racks, carts, and rack bags.