sinceUSBIF Association has unifiedUSBAfter the physical specification standard of, the wire rod in the market becomes more mainstream and universal;At the same time, Intel has released a number of communication transmission technologies, so that more and more intelligent devices are equipped with full-featured Type-C ports, with powerful additional capabilities such as high-power power transmission, video expansion, data transmission, etc.
Previously, the charging head network also introduced a number of different brands of A/C to C wires. Today, the one to be evaluated is from SanDiskSandiAlthough its appearance is industrial, its interior is full of PIN pin design and has adapter design, which may enable this cable to achieve more different connection and use experiences.
Product Introduction
As a rule, look at the products first.
SanDiskSandiThe data cable has a PC material outer cover, the cable body is soft and resistant to bending, and there is no identification label on the cable body.
SanDiskSandidata lineUSBThe Type-C male head has an extended injection terminal, and the triangle logo on the bright surface is engraved on the housing;At the same time, it can be seen that the wire body and sub end housing have thickened injection design, which is more resistant to bending.
In addition, it can be seen that the wire has adapter design, Type-CUSB-Type A, applicable to terminal equipment with more mainstream ports.
USBThe Type-C terminal is designed with 24 pin full PIN pin inside, and the specific support functions need to be measured.
The USB-A male connector of the adapter is designed with a "4+5" 9-pin PIN pin inside.
Test SanDisk with POWER-Z KM003C testerSandiThe measured data wire is equipped with E-Marker chip, which supports 20V3A power transmission and USB 3.2/USB4 Gen2 (10Gb/20Gb) data transmission.
SanDiskSandiThe diameter of the data line body is about 4.27mm.
SanDisk Sandisk data cable (C to C) is about 17cm long.
SanDisk Sandisk data cable (C to C+adapter) is about 20cm long.
The SanDisk Sandisk charging cable (C to C+adapter) weighs about 17.2g.
performance testing
The test of wire rod is mainly reflected in two aspects: functional test and the quality test of wire rod itself.The former mainly tests which functions the wire supports and whether it supports fast charging, data transmission and video transmission;The latter is mainly used to test the internal quality of wire rod, involving specific test items such as voltage drop, etc.
Quick charge
First, let's see the performance of SanDisk Sandisk data cable in charging.
Use Apple 140W charger to charge the iPhone 15 Pro phone, and the measured input power of the phone terminal is 8.71V 2.58A 23.46W.
It also charges the MacBook Pro 16 M1 Max 2021 notebook, and the measured input power of the laptop terminal is 20.33V 2.97A 60.30W.
When the SanDisk Sandisk data cable is equipped with a adapter, the pen device is charged through the USB-A port of the charger that supports QC fast charging, and the measured charging power is 5.08V 1.43A 7.28W.
Summary
The measured SanDisk Sandisk charging line can support 20V3A in terms of charging performance60WThe power transmission of can deal with mobile phones, tablets, laptops and other smart devices equipped with USB Type-C physical charging ports. It is recommended that users avoid charging with adapters.
data transmission
In addition to fast charging, let's test which specifications of data transmission SanDisk Sandisk charging cable supports.
Connect both ends of the wire to the lightning interface of MacBook Pro 16 M1 Max 2021 notebook and the Lvlian USB4 hard disk box. The hard disk box is loaded with the state induced TiPlus 7100 2TB solid state disk.
Then the Disk Speed Test was used to test the data transmission capacity of the wire. The measured write speed was about 1479MB/s, and the read speed was about 1739.7MB/s. The measured speed was USB4 Gen220GbpsTransmission specification of.
In addition, the Lenovo Xiaoxin Pro 14 notebook in Windows system also uses the Lvlian USB4 hard disk box to connect the solid state disk and the lightning port of the notebook, and uses the CrystalDiskMark speed measurement software to test the speed. The reading speed can reach 1869.24MB/s, and the writing speed can reach 970.2MB/s.
When the SanDisk Sandisk charging cable is equipped with a C-to-A adapter, the CrystalDiskMark speed measurement software is used to test the speed. The reading speed can reach 458.09MB/s, and the writing speed can reach 459.51MB/s. Only the USB 3.0 transmission specification is supported.
Summary
Because the system and the test APP algorithm are different, the reading and writing speed of the macOS system will be slower than that of Windows;The actual measurement verifies that SanDisk Sandisk charging line can reach USB4 Gen220GbpsThe transmission specification is reduced to USB 3.0 5Gbps after being used with adapter.
video transmission
Finally, let's see if the SanDisk Sandisk data cable supports video transmission.
Connect the two ends of the wire to the USB Type-C interface of the iPhone 15 Pro phone and the USB Type-C interface at the bottom of the 4K resolution display, and you can see the screen expanding to display the content of the phone interface.
At the same time, call up the display menu information, you can see that the wire supports 3840*2160@60HzResolution video signal transmission.
Pressure drop test
Voltage drop test is an important factor to measure the quality of wire rod. In daily use, it charges the mobile phone. The voltage and current are output to one end of the wire rod through the charger, and then transmitted to the other end of the wire rod to the mobile phone. The transmission of both ends of the wire rod involves voltage drop data.
Connect the two ends of the wire to the power supply instrument and the load instrument respectively. This time, the charge voltage and output voltage of the wire at different gears are tested respectively, and the travel value is calculated. The difference is the value of the voltage drop;A total of 10 gears were tested this time, and the test results are as follows.
Draw the histogram, it can be clearly seen that the gear with the largest difference in pressure drop is 0.21V of 20V3A, 15V3A, 9V3A, 5V3A, and the gear with the lowest difference is 0.07V of 20V1A, 15V1A, 12V1A, 9V1A, 5V1A;Carry out voltage drop test with 3A current, and the difference is 0.12-0.21V;Carry out voltage drop test with 1A current, and the difference is 0.07V.
Summary of charging head network
SanDisk60WThe data cable body is short, and there is no obvious difference from the conventional charging cable in appearance, and it has a C-to-A adapter, which is compatible with two types of connection modes;At the same time, it can support 20V3A60WCharging power transmission, supporting USB4 Gen220GbpsThe data transmission function is more inclined to the ability of data transmission.
Similarly, the quality of this fast charging line is measured based on the voltage drop test. Under the same current, with the voltage gradually rising from 5V to 20V, the voltage drop values are almost the same, which can stabilize the charging.
With more and more smart devices such as mobile phones, tablets, laptops and so on equipped with multi-functional USB Type-C charging ports, users are like SanDisk Sandisk when charging60WAt the same time, the data cable can also support high specification data transmission capability, which helps intelligent office, entertainment and life.