Switch2USB-C poor compatibility: blogger criticized old man and excluded third parties after actual test

　　September 4, recently, the well-known overseas blogger Linus Tech Tips (LTT) released a video, harshly criticizing Nintendo's use of the proprietary USB-C protocol in Switch 2 and excluding third-party accessories, calling it "strategic negligence."

　　LTT uses professional equipment to conduct in-depth analysis of the USB-C communication of Switch 2. The results show that when the Switch 2 is connected to the official dock, it will exchange more than 30 "VENDOR_DEFINED (vendor-defined)" messages, which is a completely proprietary communication protocol.

Originally, USB-C PD was designed as a standardized protocol to enable different devices to safely negotiate power transmission and enable functions. But Nintendo has added proprietary verification mechanisms beyond the standard protocol, and only accessories that pass its certified can trigger full features such as video output and optimal charging efficiency.

LTT believes that Nintendo's move violates the original intention of USB-C as a general standard. At present, other game console manufacturers are moving towards universal standardization, but Nintendo is doing the opposite, which not only harms the interests of consumers, but may also cause other manufacturers to follow suit and have a negative impact on the entire technology industry.

　　Many well-known accessories manufacturers have been deeply influenced by Nintendo's policies. Steam Deck dock maker Jsaux publicly stated that the development plan for Switch 2 accessories has been suspended due to Nintendo's restrictions.

　　The Verge pointed out in an in-depth investigation that Nintendo's move was mainly to protect the profits of the accessories market. The market generally felt that Nintendo was imitating Apple's strategy, but implemented it more radically. At present, Nintendo has not responded to this controversy, and subsequent developments deserve continued attention.