In May 2021, the USB-IF Association launched version v2.1 of the USB Type-C cable and interface standard, which updated the USB PD3.1 fast-charging standard, increased the charging power to 240W, and added three new sets of expanded voltage grades of 28V, 36V, and 48V. At the same time, the specifications of the cable have also changed, with two specifications of 20V grade ordinary cable and 50V grade EPR cable. It is understood that in order to improve safety, in the USB PD3.1 specification, more than 100W power output, not only need to use the EPR cable, but also between the cable and the charger, as well as between the device and the cable need to be identified by specific information, one of the three is indispensable. With the release of the 16-inch MacBook Pro 2021, the world's first USB PD3.1-standard 140W fast-charging charger and the first USB PD3.1 fast-charging deception cable have also been announced for official mass production. Third-party fast-charging accessory manufacturers have acted, high-power chargers, charging cables are in intense research and development. USB Type-C 2.1 fast-charging cable as a rare new standard cable in the industry, how is the internal structure and materials of this product? The following is for you to disassemble to reveal the secret.
First, USB Type-C 2.1 fast charging cable appearance.
The USB-C port is a 24Pin design.
Second, USBType-C 2.1 fast charging cable disassembly.
Cut the USB-C connector along both sides of the housing.
Inside, there is a transparent hard plastic sealing layer, which shows the red PCB board inside as well as the solder joints of the wire core.
The back PCB board vaguely shows a chip and positive and n egative lead solder joints on the internal PCB board.
Clean up the hard rubber and the E-Marker chip to Easy Flush Semiconductor.
The red cable is the VBUS cable and the cable shield serves as GND.
Signal cables are soldered in a row on the back of the PCB.
The other end features a green PCB board with pads reserved f or the E-Marker chip, along with a soldered GND wire.
On the back are several colored signal cables as well as the red VBUS cable.
Next, the cable is split in two, and the TPE jacket inside is visible.
Inside the TPE jacket is the shield as well as the multi-stranded core.
The shield is also prepared using the same process.
There is also a layer of aluminum foil underneath the shield, which when peeled off reveals multiple cores of different colors inside.
There are a total of 7 cores inside as well as one strand of tensile wire. The red core is the thickest and is used for power transmission. The yellow, green, blue, and white cores are wrapped in an insulating jacket, and the other three are bare wires.
Cable section disassembly at a glance.
Close-up of the mesh shield.
Aluminum foil shield that wraps the wire core.
The red cable is thicker and has tensile fibers in it.
The white core has the same tensile fibers inside.
Blue wire core.
Green wire core.
Yellow wire core.
Three other bare wire cores.
USB Type-C2.1 cable all disassembled.
Summarize
This USB-C to USB-C cable is one of the few fast charging cables in the industry that complies with the USB Type-C 2.1 standard. In terms of performance, it not only supports USB 2.0 data transfer, but also 50V 5A power transfer, which is an EPR specification fast charging cable, which means that, when paired with a USB PD3.1 charger, it will be able to provide 240W charging for USB PD3.1 devices! capability. However, there is no USB PD3.1 device based on the USB-C interface, so the specific performance could not be tested. Through disassembly, we learned that this cable is developed based on the E-Marker chip of E-Punch Semiconductor, with a built-in E-Marker chip, which belongs to the passive type of cable. The two USB-C ports use a high-specification 24Pin design, the outer layer of the cable is a braided fish wire mesh, smooth and lint-free, the internal use of shielding mesh and aluminum foil to form a multi-layer shielding effect, the overall material is solid.
