Millet lightning data cable is an Apple data cable, not Apple produced, but millet investment produced. The MFi certification is Apple's authorized accessories manufacturers produce external accessories, a logo license, "Made for iOS" in English. Authorized data lines can be fully compatible with iPhone / iPad and other products, and not certified cottage data lines may not be connected to the computer, or even not charging problem.

1, "mini USB" than "micro USB" was born early, once the mainstream USB mobile device mode, but now has been abandoned, and may be very old in the phone can also see the interface of the data line;

2, "micro USB" was born in 2007 the new USB standard, you can also be understood as USB 2.0, has now replaced the "mini USB" mobile devices become the mainstream USB interface mode;

3, "micro USB" than "mini USB" has a longer life, in terms of size, but also smaller;

Li-ion battery on the temperature requirements, when the temperature is too low, the low-temperature lithium battery protection mechanism will prevent the material in the battery chemical reaction, resulting in normal charging or charging very slowly. When the temperature is too high, the lithium battery will become unstable, serious will cause an explosion.

In December 2013, the USB 3.0 promotion team announced the next generation of USB Type-C connector renderings, and then in August 2014 began to have ready for mass production. The highlight of the new interface is a slimmer design, faster transfer speeds (up to 10Gbps) and more power transmission (up to 100W). Type-C double-sided pluggable interface is the biggest feature is to support the USB interface, double-sided insert, officially solved the "USB will never be inserted," the worldwide problem, both positive and negative plug. While supporting the use of it with the USB data cable must also be thinner and lighter.

USB Type-C has the following characteristics:

The maximum data transfer rate of 10Gbit / s, is also the standard USB 3.1;

2.Type-C interface socket side of the size of about 8.3mm × 2.5mm slim design

3. Support both positive and negative can be inserted into the "pros and cons" function, can withstand 10,000 times repeatedly plug;

4. The standard cable with Type-C connector allows up to 3A of current, and also supports USB PDs that exceed the existing USB power capability, providing up to 100W of power.

Most people may not know what Type-C double-sided pluggable interface looks like, but industry insiders believe that once this feature is popularized on mobile devices, it will be welcomed by everyone. However, it also has shortcomings, after all, not popular, USB type-c interface and can not use ordinary data lines, so if you are heavy users and often go out, then you have to carry the data cable, because you can not borrow So tall on the data line. Now, more and more new machines are using USB type-c interface, but in fact, they are USB2.0 standard, and the real USB Type-C interface is USB3.0 standard, the transmission rate is not and USB3.0. And, USB type-c is only the mobile phone interface can be used, the computer interface is still an ordinary interface.

HDMI is the abbreviation of High-Definition Multimedia Interface, the first and only uncompressed all-digital audio / video interface, and the standard digital interface of HD and consumer electronics market. It is adopted by more than 500 enterprises. More than 130 million HDMI-enabled devices will be available in 2007, and the number of HDMI devices installed in 2010 will reach one billion.

HDMI delivers high definition, all-digital audio and video data transmission over a single cable, greatly simplifying cabling and providing consumers with a high-quality home theater experience. HDMI provides an interface between any audio / video source in a single cable (such as a set-top box, DVD player, or A / V receiver) and an audio or video monitor such as a digital TV DTV.

HDMI supports standard, enhanced or high-definition video and multi-channel digital audio on a single cable. It transmits all ATSC HDTV standards and supports 8 channels, 192kHz, uncompressed digital audio and existing compression formats such as Dolby Digital and DTS.

The HDMI specification has been updated to version 1.4 and HDMI Licensing, the agency responsible for providing high definition multimedia interfaces (HDMI), has announced that it will add stereo video signal support to the new HDMI v1.4 standard. The panel responsible for standard-setting will add the stereoscopic video format tentatively titled "Top / Bottom" to the standard at next month's standard meeting. The standard will specify the transmission protocol for stereo video signals, but the HDMI Licensing organization also said that the standard will not be stereoscopic video broadcast signal format mandatory, they will later supplement and modify this part of the content. In addition to the provisions of the three-dimensional video signal transmission protocol, the new specification also joined the data transfer function, for the HDMI interface to join a dedicated 100Mbps Ethernet connection channel. Also added for transmission of compressed format audio signal Audio Return channel and so on.