Programming and Debugging: USB cables are essential for programming and debugging certain electronic devices. USB 3.2 Gen 2×2 is quite popular nowadays and offers a top speed of 20 Gbps using 2-lane operation (hence the name 2×2). This version is only compatible with USB Type C design. Since it offers considerably faster data transfer and charging speeds, most modern smartphones and even some laptops support this USB version. USB 4.0 USB Type-B: This connector is mostly used for connecting printers, scanners, and other peripheral devices to computers. It has a square shape with bevelled corners. Universal Serial Bus Type-C Cable and Connector Specification, Release 2.2. USB Implementers Forum (Technical report). USB 3.0 Promoter Group. October 2022 . Retrieved April 12, 2023.

The USB Power Delivery specification revision3.0 defines an optional Programmable Power Supply (PPS) protocol that allows granular control over V BUS power, allowing a range of 3.3 to 21 V in 20mV steps to facilitate constant-current or constant-voltage charging. Revision 3.0 also adds extended configuration messages and fast role swap and deprecates the BFSK protocol. [57] [68] [69] The Certified USB Fast Charger logo for USB Type-C charging portsIn 2022, the Radio Equipment Directive 2022/2380 made USB-C compulsory as a mobile phone charging standard from 2024, and for laptops from 2026. [97] Faster-charging standards [ edit ] USB 3.0 was launched in September 2007 and could handle a top speed of 5 Gbps. This was the third major update to USB standards (the previous updates were versions USB 1.0 and USB 2.0). Connector properties [ edit ] Non-standard "USB extension cable", plug on the left, receptacle on the right. (USB does not allow extension cables. Non-standard cables may work but cannot be presumed reliable.)

Agreement on Mobile phone Standard Charger" (Press release). GSM World. Archived from the original on 17 February 2009. Per the base specification, any device attached to a standard downstream port (SDP) must initially be a low-power device, with high-power mode contingent on later USB configuration by the host. Charging ports, however, can immediately supply between 0.5 and 1.5A of current. The charging port must not apply current limiting below 0.5A, and must not shut down below 1.5A or before the voltage drops to 2V. [50] As you can imagine, the design of the lightning connector makes it impossible to be used in any other device other than Apple devices, which makes it a nuisance for many users. You will likely find USB Mini in portable cameras, game controllers, and some old mobile phones. They typically have 5 pin configurations and are smaller than regular USB types, hence the name ‘mini’. However, they have largely been replaced by the smaller Micro-USB and USB-C connectors. 5 – USB Micro (Micro USB A, Micro USB B, And Micro USB B Superspeed) Proprietary Cables vs Standard USB". anythingbutipod.com. 30 April 2008. Archived from the original on 13 November 2013 . Retrieved 29 October 2013.Common charger: MEPs agree on proposal to reduce electronic waste". European Parliament. April 20, 2022. Archived from the original on April 22, 2022 . Retrieved April 20, 2022. Since these currents are larger than in the original standard, the extra voltage drop in the cable reduces noise margins, causing problems with High Speed signaling. Battery Charging Specification 1.1 specifies that charging devices must dynamically limit bus power current draw during High Speed signaling; [51] 1.2 specifies that charging devices and ports must be designed to tolerate the higher ground voltage difference in High Speed signaling.