What are the advantages and disadvantages of USB-C?
Mainstream manufacturers have already embraced USB Type C (hereinafter referred to as "USB-C"): Apple's MacBook, HP Spectre notebook, Google Nexus 6P phone, Samsung Galaxy Note 7 phone, Lenovo Moto Z phone have all used USB -C.
Intel architects Brad Saunders and Rahman Ismail described the future of USB-C as an audio standard interface. It is reported that Intel hopes that the USB-C agreement can become a new industry standard, and reached agreement with all headset and audio manufacturers, so that users can use any device when buying headphones, just like the current 3.5mm interface.
What is USB-C? USB-C is an interface style. In the existing USB 3.1 standard, there are three interface styles: one is Type-A (that is, Standard-A, the most common USB interface style on traditional computers); one is Type-B (both Micro-B, most of which are currently The interface style used by Android smart phones); the other is the protagonist of this article Type-C.
Different styles mean that the interface size is different. The USB-C interface size is 8.4 mm x 2.6 mm, which is slightly larger than the Lightning interface. What are the advantages of USB-C? One of the most obvious benefits is that it is a versatile interface that can perform voice transmission, data transmission and charging. Combined with the introduction of Saunders and Ismail, USB-C has the following five advantages.
1. The sound quality is greatly improved. Compared with 3.5mm using analog audio signals, USB-C uses digital signals. Digital audio allows more types of sound processing, which means users can enjoy the sound effects in a large concert hall without the need for expensive headphones or earplugs, and can also eliminate aircraft engines Or the noise like the boom of the train. Saunders said: "All of this can only happen in the digital realm."
2. Fast charging speed, there is a new technology called "USB Power Delivery" (USB Power Delivery), which can make the transmission power between devices complying with the USB 3.1 standard up to 100 watts, which is not only enough to meet the market Most computer and mobile phone requirements can also produce faster charging speeds.
3. The device is thinner and lighter, which is the direct advantage of reducing the interface. This is reflected in Apple's Macbook. On Apple's 12-inch Macbook, only this interface and 3.5 mm interface are retained, so the thickness of the body is lighter and thinner than before.
4. Convenient, because the USB-C interface is the same as Apple's Lightning interface, there is no difference between the front and the back, and the user does not have to struggle with the dilemma of repeatedly changing the face.
5. The transmission speed is fast, and the data transfer rate of USB-C can reach 10Gbps, which means that it can support higher resolution displays, but Ismail pointed out that this does not mean to replace HDMI. And more importantly, USB-C can support the output of the screen to multiple monitors through the adapter at the same time, and it will also have the function of device certification to provide better security.
Are there any disadvantages of USB-C? There are also. The USB device needs a control chip, and the corresponding power consumption is required. The PC is good to say, but it will have a certain impact on the mobile phone. But on this point, Sanders said that they have modified the specifications in USB-C. If the user does not use the microphone in the headset, the system will automatically turn off this function to save power. "This has minimal impact on battery life." Sanders said.
What is the impact on consumers? Consumers may need a long-term adaptation process. Because USB-C is not compatible with many existing devices on the market, you may buy a new MacBook and a USB mobile hard disk that matches it, but when you go to the print shop, you find that your hard disk cannot be inserted into the print Store computer. And if the 3.5mm headphone jack is gone, users will have to re-purchase new headphones. However, as Saunders mentioned earlier, if you want to enjoy high-quality music, you don't need to buy expensive headphones, which is extremely cost-effective for consumers.
Since the 1990s, the USB interface has gradually replaced many types of interfaces, such as keyboards, mice, printers, and gamepads. It is also a trend that the audio interface is replaced by the USB-C interface. The popularization of USB-C is essentially a standard replacement, which involves reaching consensus or compromise between the upstream and downstream of the entire industry. USB-C is the trend, but it will take some time.
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