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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 ...
USB and Parallel. [8] Logitech USB QuickCam Home 1998 General 352x288 [9] Logitech QuickCam Express 1999 General 320 × 240 @ 30 frame/s, [10] 640 × 480 @ 15 frame/s $49 . [8] Logitech QuickCam Web 1999 High-End 640 × 480 @ 30 frame/s [11] Only USB. [12] With built-in microphone. [13] Logitech QuickCam Pro 3000 2000 High-End 640 × 480 ...
A Chromecast stick plugged into the HDMI port of a TV. The cable attached to the other end is the USB power supply. In the mid-to-late 2010s, the dongle form factor was extended to digital media players with a small, stick-like form factor—such as Chromecast and Fire TV Stick—that are designed to plug directly into an HDMI port on a television or AV receiver (powered via Micro USB ...
There are potential weaknesses in the implementation of the protocol between the dongle and the copy-controlled software. For example, a simple implementation might define a function to check for the dongle's presence, returning "true" or "false" accordingly, but the dongle requirement can be easily circumvented by modifying the software to always answer "true".