The USB (Universal Serial Bus) is a standard that defines the cables, connectors and used a bus to connect, communicate, computers, peripherals and electronic devices protocols Transmission Rates Low speed (USB 1.0). Transfer rate up to 1.5 Mbit/s (188 kB/s) used in keyboard, mouse ... transfer rate up to 12 Mbit/s (1.5 MB/s) High Speed ??(USB 2.0): Rate transferencia up to 480 Mbit/s (60 MB/s) SuperSpeed ??(USB 3.0) transfer rate up to 4.8 Gbit/s (600 MB/s) Connector Types 1 - USB type A (4 pin) 2. - USB type B (4 pin) 3 - Mini A (5-pin) 4 - Mini B (5-pin) 5 - Micro A (5-pin) 6 - Micro B (5-pin)

or horizontal. The micro USB with five pins, which pins identification (ID) Micro AB USB connectors special work. AB connectors with pin ID can allow the device to function as a connector A or B to standard USB technology. This gives the new smart phones and other devices the option to act as either a single storage device or as provi

The mini USB connectors are smaller than their standard counterparts and have USB fifth pin. The fifth pin is known as the pin ID and is typically not used in mini USB connectors. It was designed to allow later improved USB technology. The mini USB connectors have a cycle life of at least 5000 connections and disconnections, which accommodates the mobile nature of the devices that are designed to interact. The standard USB connectors are generally used with devices that are stationary and not disconnected often.

USB 3.0 is the second major revision of the standard Universal Serial Bus (USB) connectivity for computing. USB 3.0 has transmission speeds of up to 5 Gbit/s, which is 10 times faster than USB 2.0 (480 Mbit/s). Connector Types 1 - USB type A plug 2 - 3 USB type A female - USB type B 4 - Micro USB B

USB-C reversible USB version called USB cables USB Type C Type C or USB reversible. The important thing is this type of USB is that it has top and bottom. So you may save the blows that are given involuntarily to connect the connector upside down. It is also characterized in that when connected will make an audible "click". The USB-C or reversible USB cables can reach 10 Gbps and support USB 3.0, 3.1Use is estimated up to 10,000 applications and has some measures 8.4mm x 2.6mm is also compatible with USB 3.1 and USB indicate creators

Thunderbolt is called the cable used by Apple for the transmission of video, considered one of the fastest technologies for laptops in terms of data transmission.

Its development is based on the PCI Express and Displayport architecture.

They are capable of transferring data, high definition video and voltage. Able to reach up to 10 Gb/s in both directions, a speed 20 times faster than a USB 2.0 or 12times faster than a firewire cable.

Currently we can find Thunderbolt technology with 10 GB/s, Thunderbolt 2 with speeds higher than 20 gb/s and Thunderbolt 3 with speeds of 40 GB/s and up to 15 W of voltage.

With Thunderbolt 3 we will have compatibility with HD devices like 4k or 5K screens.

Power Delivery (PD) is a fast charging standard for portable electronic devices. It was developed by the USB Implementers Forum (USB-IF) to improve the speed and efficiency of charging devices such as smartphones, tablets, laptops, and other USB devices.

The Power Delivery standard allows devices to receive a greater amount of power through a USB-C cable, allowing for much faster charging than previous standards. Additionally, PD also allows devices to be charged over a variety of voltages and currents, which means devices can be charged at a faster rate where their design allows.

The PD standard also allows for the ability to charge a device while it is being used, and also allows devices to act as power sources, that is, they can charge other devices. Devices with Power Delivery support are easily recognized by the PD logo on the device or on the charger.