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1. What is the power requirement for 1st gen mac book air 2011 portable#
2. What is the power requirement for 1st gen mac book air 2011 pro#

USB 3.1 gen 1 (also known as SuperSpeed USB 3.0) supports up to 5Gbps If you're buying a cable to use with your new USB-C Mac, you have two choices: USB or Thunderbolt. So if you want to connect your TV to your MacBook over USB-C, make sure the cable supports HDMI Alternate Mode.īuying the right cable is important. You must buy a cable that explicitly states it is compatible with the mode you want to use. There's something important to note if you intend on using any of these standards. HDMI Alternate Mode: Send HDMI audio and video via USB-C.Thunderbolt Alternate Mode: Connect Thunderbolt devices using the USB-C connector.Mobile High-Definition Link (MHL) Alternate Mode: Send MHL audio and video using USB-C.DisplayPort Alternate Mode: Send DisplayPort video using the new-shape USB-C connector.Many devices, like the latest MacBooks, let you use USB-C cables for a range of "Alternate Modes" including:

What is the power requirement for 1st gen mac book air 2011 portable#

Devices using the USB-C standard for data and power transfer include Google's Pixel smartphones, the latest MacBook Pro, the Nintendo Switch, and many portable USB batteries. Some USB-C cables can carry 5A for 100W at 20V, enough to charge the latest high-end MacBooks and HP Spectre line of laptops (to name but a few). Image Credits: Simon Eugster/ Wikimedia Commons and Andreas Pietzowski/Wikimedia Commons Many smartphones use the USB-C standard to facilitate fast charging, which pulls in a higher voltage thanks to the increased power throughput. Despite USB-C using a 24-pin connector, many different standards have used the USB-C shape.Īll USB-C cables must be able to carry at least a 3A current up to 60W at 20V.

It's not a standard for data transmission, like USB 2.0 or 3.1. USB-C strictly relates to the shape of the connector and the port into which it fits. That means no more fishing around in the dark wondering whether you're holding the cable the right way round. Unlike its predecessors, you can insert USB-C any way. Let's try and make sense of this mess of MacBook ports.Īlso known as USB Type-C, USB-C is a symmetrical connector designed to replace the existing Type-A and Type-B connectors. Some cable manufacturers have been accused of breaking standards, and cheap USB-C cables might even damage your electronics. What's the difference?ĭespite the "U" in USB standing for "universal," the standard has come under fire for confusing consumers.

What is the power requirement for 1st gen mac book air 2011 pro#

The latest MacBook Pro sheds almost all ports it includes only a headphone jack, a few USB-C connectors, and it also supports the latest high-speed Thunderbolt 3 standards.