With speeds up to 5Gbps, USB 3.0 is quickly becoming the new standard in data transfer technology for PCs and laptops. However, some computers only have 10/100 Ethernet ports while Macbook Air and often Ultrabooks don't have Ethernet ports at all. Existing USB 2.0 Gigabit Ethernet adapters are limited by USB 2.0 maximum data rate of 480 Mbps while our USB 3.0 adapter can reach speeds of 5 Gbps.Upgrade existing 10/100 Ethernet connection to super-fast Gigabit speeds or introduce USB 3.0 true Gigabit Ethernet connection to an Ultrabook or Macbook Air.USB 3.0EU-4306 supports USB 3.0, the latest specification of the USB standard that specifies a maximum data transfer rate of 5 Gbps.Up to ten times faster than the existing USB 2.0 standard limited to a maximum speed of 480 Mbps, USB 3.0 enables the full capacity of 10/100/1000 Mbps Gigabit Ethernet to be accessed through an existing USB port without the need to install a Gigabit Ethernet card.Perfect for UltrabooksFor Ultrabooks or a Macbook Air without an Ethernet port, use the USB 3.0 Gigabit Ethernet adapter for easy plug-and-play Gigabit Ethernet network connectivity. Portable EU-4306 wherever you take your laptop and make sure you're connected to fast, reliable Gigabit Ethernet whenever you need it. Provide Gigabit Ethernet connectivity for desktops, laptops, game consoles, or home networking devices. Supports jumbo framesSupport for jumbo frames can offer dramatic improvements in network performance and increase efficient bandwidth. Jumbo frames are Ethernet frames (data packets) of up to 4000 bytes per frame, compared to standard, significantly smaller 1500 byte Ethernet frames. For some applications, especially those typical of Gigabit Ethernet use, such as large file transfers, the result is greatly increased network performance. Energy savingThe EU-4306 has a power saving feature to reduce power consumption by up to 35% when there is no Ethernet activity, reducing costs and contributing to a better environment. Windows & Mac OS supportedFull compatibility with Windows 7/8.1/10 and Mac OS 10.x for hassle-free use with all-new Windows 10 and Mac OS 10.x devices and future-proof peace of mind.