Lucas123 writes "When it comes to performance, power and size, external I/O interconnect Thunderbolt handily beats SuperSpeed USB, but in the one critical category — ubiquity — it has an almost impossible uphill battle. Thunderbolt has a maximum 10Gbps signaling rate to SuperSpeed USB's 6Gbps and it offers more than twice the power to devices. To date, however, Apple is the only systems manufacturer to adopt Thunderbolt, and it has done so as an additional device connectivity port, keeping SuperSpeed USB on its computers. No other systems manufacturer has committed to Thunderbolt. In contrast, SuperSpeed USB has been installed on 10 billion pieces of hardware, with numbers continuing to grow."