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The USB mass storage device class (also known as USB MSC or UMS) is a set of computing communications protocols, specifically a USB Device Class, defined by the USB Implementers Forum that makes a USB device accessible to a host computing device and enables file transfers between the host and the USB device. To a host, the USB device acts as an ...
Such devices can use an external power supply, which is allowed by the standard, or use a dual-input USB cable, one input of which is for power and data transfer, the other solely for power, which makes the device a non-standard USB device. Some USB ports and external hubs can, in practice, supply more power to USB devices than required by the ...
November 10, 2020 May 4, 2020 MacBook Pro (13-inch, Two Thunderbolt, 2020) MacBook Pro: November 10, 2020 MacBook Pro (13-inch, Four Thunderbolt, 2020) MacBook Pro: October 18, 2021 June 22, 2020 Developer Transition Kit (2020) Mac Mini: February 3, 2021 August 4, 2020 iMac (Retina 5K, 27-inch, 2020) iMac: March 8, 2022 November 10, 2020 Mac ...
Logitech Unifying receiver (older) Logitech Unifying receiver (newer) Unifying logo The Logitech Unifying Receiver is a small dedicated USB wireless receiver, based on the nRF24L-family of RF devices, [1] that allows up to six compatible Logitech human interface devices (such as mice, trackballs, touchpads, and keyboards; headphones are not compatible) to be linked to the same computer using 2 ...
June 10, 2013 Time Capsule (4th gen) AirPort, drives: June 10, 2013 July 20, 2011 MacBook Air (Mid 2011) MacBook Air: June 11, 2012 Mac Mini (Mid 2011) Mac Mini: October 23, 2012 Thunderbolt Display: Displays: June 23, 2016 October 14, 2011 iPhone 4 (8 GB) iPhone: September 10, 2013 iPhone 4S (16 GB) iPhone: September 10, 2013 iPhone 4S (32 ...
A USB compound device contains an embedded USB hub and one or more non-removable USB devices. [1] It may or may not have exposed downstream ports. The internal USB hub may be a physical IC that connects to other ICs, or the hub and all functions may be implemented in software on a single IC (though it is more common to integrate them as a composite device in this case).
Mac configurations with 1 TB of SSD storage or greater receive 2 GB LP-DDR4, while lower storage configurations receive 1 GB. [6] The bridgeOS of Apple T2 is stored in a firmware partition of the Mac's built-in SSD, which is hidden in macOS and Windows. [7] The T2 communicates with the host via a USB-attached Ethernet port. [3]
Mac OS X Tiger and later also include command line utilities for querying or manipulating Spotlight. The mdimport command, as well as being used by the system itself to index information, can also be used by the user to import certain files that would otherwise be ignored or force files to be reimported.