With speeds up to 5 Gbps, USB (Universal Serial Bus) 3.0 is fast becoming the new standard in data-transfer technology for PCs & laptops. However, some computers only feature 10/100 Ethernet ports while Macbook Airs & often Ultrabooks don’t feature Ethernet ports at all. Existing USB (Universal Serial Bus) 2.0 Gigabit Ethernet adapters are limited by the USB (Universal Serial Bus) 2.0 maximum data rate of 480 Mbps while our USB (Universal Serial Bus) 3.0 adapter can reach speeds of 5 Gbps. Upgrade existing 10/100 Ethernet connectivity to super-fast Gigabit speeds or introduce USB (Universal Serial Bus) 3.0 true Gigabit Ethernet connectivity to an Ultrabook or Macbook Air.