USB-C wires are becoming more and more popular, and dual USB-C wires have also appeared in people’s lives. Compared with other wires, dual USB-C can accomplish a lot of work, and can achieve what other wires cannot.

Compared with the conventional dual USB-C cable, the dual USB-C cable we introduced today is very good in terms of performance and workmanship. Let’s take a look.

One: outer packaging

This is a dual USB-C data cable from LMPDA. The male connector type of the cable can be seen from the transparent packaging in the middle. There are a row of 11 different interfaces listed above, and only one of these interfaces is required to work USB-C male type can be completed, you can imagine how convenient the current USB-C is.

Two:Unboxing

The LMPDA wire we got this time has three specifications in terms of length, which are 0.8m, 1.2m and 2.0m, and it can be seen that there is scotch tape pasted at the opening, and it can be judged whether it is brand new and unopened.

Tear off the scotch tape and take out the inner tank, the wire is fixed in the middle position. The items in the package are also very simple, only the LMPDA wire and after-sales service manual.

Three:LMPDA dual USB-C cable

The terminal head of this wire of LMPDA is particularly long, and there is also the LMPDA Logo and 40GBps data transmission speed at the position of the terminal head. The connection between the terminal head and the wire body has an extended design, which can extend the service life of the wire. The wire body is close-up, very clean and tidy, without obvious burrs.

Four:Wire specifications

The end-to-end length of the wire we unpacked is about 203cm, and there are 1.2m and 0.8m options.

The diameter of the wire is about 4.9mm, which is thicker than the general dual USB-C wire.

Five:E-Marker read

Use KM001C to read the information of the cable, and the actual measurement supports a charging power of 20V5A 100W and a data transmission speed of 40Gbps. The USB standard is USB3.2 Gen 3.

Six: charging test

In order to test the power transmission capacity of the wire, we have found several equipment that supports high-power charging to test the parameters, and use the wire with a PD charger to charge the Nubia Red Magic 5G mobile phone. At this time, the power is 9.58V 4.97A 47.67W. Use wire with PD charger to charge Black Shark 3S mobile phone, the power is 8.98V 4.31A 38.73W at this time. Use wire with PD charger to charge Samsung S20 Ultra mobile phone, the power is 9.53V 3.61A 34.43W at this time. Use the wire with PD charger to charge the Meizu 17 Pro mobile phone, and the power is 9.75V 2.77A 27.08W at this time. Use a cable with a PD charger to charge the iPad Pro. At this time, the power is 15.08V 2.09A 31.64W. Use the cable with the PD charger to charge the MacBook Pro 16. At this time, the power is 20.43V 4.55A 93.03W. At this time, it can be seen that the cable supports 20V 5A 100W charging power. Finally, use the wire with the PD charger to charge the 100W power bank, and the power is 20.43V 4.66A 95.25W.

Seven: video transmission test

The following is to test the video transmission capability of the cable, that is, it is common to connect a large-screen monitor to a notebook computer, and use the two ends of the cable to connect the notebook and the monitor respectively. After connecting the Dell U2720QM monitor, it can be seen that the monitor on the back of the laptop is successfully lit, and the cable supports video transmission. Then we retrieved the specific parameter information of the display, and it can be seen that the resolution of the display is 3840 x 2160, 60Hz 30Bit, which means that the cable supports the expansion of 4K 60Hz displays.

Eight:Data transmission speed test

Finally, let's take a look at the data transmission capacity of the cable. Use the two ends of the lightning cable to connect the lightning interface of the notebook and Samsung's partable SSD X5 solid state drive. Use the Disk Speed Test on the MacBook Pro to test the transmission speed at a room temperature of about 25°C. The measured write speed is 2018.4MB/s and the read speed is 2620.5MB/s. This reading and writing score is already the transmission speed standard of the Thunderbolt 3 cable.

Summary

The dual USB-C cable from LMPDA is white all over. There are three specifications of 0.8m, 1.2m and 2m in length to choose from, which can cover more usage scenarios. The thread body is clean and tidy, without fluffing, and there are 22 pin points inside the USB-C.

A 40Gbps logo is printed on the position of the terminal head. After actually using KM001C to read the information inside the wire, it is found that the wire supports 20V5A 100W charging power and 40Gbps data transmission speed. The USB standard is USB3.2 Gen 3.

After the actual test, it was found that the wire supports 20V5A 100W charging power, supports 4K 60Hz display expansion, and the data writing speed reached 2018.4MB/s, and the reading speed was 2620.5MB/s.

At present, the length of most lightning data cables on the market is 0.8m or 0.3m. This is because the performance of lightning cables is the top configuration in all current cables. To achieve such performance standards, the requirements for all aspects of the cable are very high, the longer the transmission distance of high-frequency signals, the greater the signal attenuation, which is why most of the lightning 3 are short lines.

In order to transmit high-frequency signals over long distances, chips are usually used to amplify and compensate the signals, which means that to achieve a length of 1m or more, both cost and technology have higher requirements. Therefore, there are only a handful of lightning cables on the market that are longer than 1m or even 2m in length.

Conventional 0.8m and 0.3m lightning cables are already relatively common in the market. The reason for evaluating this lightning cable of LMPDA is because there are three different specifications to choose from in terms of length, 0.8m, 1.2m or even 2m in length. And it should be noted that the lightning cable with a length of 2m was selected for this evaluation. The data results obtained in the actual data transmission speed test are very good, and the transmission speed is not greatly reduced due to the substantial lengthening of the lightning cable. It is very rare.

By the way, one thing that needs to be mentioned is that the 2m-long lightning cable of LMPDA not only supports all the performance standards of the lightning cable, but also is backward compatible with USB3.1 and 3.0, so there is no need to worry about compatibility issues.

In terms of performance, the measured parameters are in line with the parameter information of the wire, and the longest 2m length of thunder wire is currently rare in the market. The performance is really good, and the wire is very thick, so there is no need to worry about quality problems.