On the other hand, when a passive adapter is used, digital-to-analog conversion is done on the host device and analog audio is sent through the USB-C port. The sound quality is dependent on the phone's onboard DAC. Passive adapters are only compatible with devices that output analog audio, adhering to the Audio Adapter Accessory Mode specification.

DisplayPort Alternate Mode 2.0: DisplayPort 2.0 can run directly over USB-C alongside USB4. DisplayPort 2.0 can support 8K resolution at 60 Hz with HDR10 color and can use up to 80 Gbps, which is double the amount available to USB data. [53] USB-C devices may optionally provide or consume bus power currents of 1.5A and 3.0A (at 5V) in addition to baseline bus power provision; power sources can either advertise increased USB current through the configuration channel or implement the full USB Power Delivery specification using both the BMC-coded configuration line and the legacy BFSK-coded V BUS line. [6] [11] USB Type-C Connectors and Cable Assemblies Compliance Document, v1.2 | USB-IF". usb.org. Archived from the original on 2020-03-19 . Retrieved 2019-05-02.Opam, Kwame (2015-11-05). "A Google Engineer is Testing USB Type-C Cables So You Don't Have To". The Verge. Archived from the original on 2017-10-24 . Retrieved 2017-10-23. Burke, Steve (2019-03-25). "Why USB 3.1 Type-C Isn't on More Cases & Cable Factory Tour in Dongguan, China". Gamers Nexus. Archived from the original on 2019-06-26 . Retrieved 2019-06-26.

In 2021, the European Commission proposed the use of USB-C as a universal charger. [92] [93] [94] On 4 October 2022, the European Parliament voted in favor of the new law, Radio Equipment Directive 2021/0291, with 602 votes in favor, 13 against and 8 absentions. [95] The regulation requires that all new mobile phones, tablets, cameras, headphones, headsets, handheld video game consoles, portable speakers, e-readers, keyboards, mice, portable navigation systems, and earbuds sold in the European Union and supporting wired charging, would have to be equipped with a USB-C port and charge with a standard USB-C to USB-C cable by the end of 2024. Additionally, if these devices support fast charging, they must support USB Power Delivery. These regulations will extend to laptops by spring 2026. [96] To comply with these regulations, Apple Inc. replaced its proprietary Lightning connector with USB-C beginning with the iPhone 15 and AirPods Pro second generation, released in 2023. [97] See also [ edit ] Shilov, Anton. "USB-C Authentication Tech to Restrict Usage of Uncertified USB-C Accessories and Cables". AnandTech . Retrieved 2022-06-12. Smith, Ryan (2018-07-17). "VirtualLink USB-C Alt Mode Announced: Standardized Connector for VR Headsets". AnandTech. Archived from the original on 2018-08-21 . Retrieved 2018-08-21. OS X Yosemite (macOS version 10.10.2), starting with the MacBook Retina early 2015, supports USB 3.1, USB-C, Alternate Modes, and Power Delivery. [67] iOS from version 12.1 ( iPad Pro 3rd generation or later, iPad Air 4th generation or later, iPad Mini 6th generation, iPad 10th generation, iPhone 15) onwards works with USB-C.Thunderbolt 3 (also carries 4× PCI Express 3.0, DisplayPort1.2, DisplayPort1.4, USB 3.1 Gen 2), [30] [31] [32] [33] Transition existing products from USB 2.0 OTG to USB Type-C" (PDF). Archived (PDF) from the original on 2017-10-24 . Retrieved 2017-10-23. In single-lane mode, only the differential pairs closest to the CC pin are used for data transmission. For dual-lane data transfers, all four differential pairs are in use.