Benson Leung is the Google engineer known because in free time test of USB cables Type-C of dubious origin. These include the Surjtech model 3 m USB A-to-C, the last in chronological order between the ones he tried, which is apparently made with a quality so poor that they have "fried" her ChromebookPixels and two USB Power Delivery Analyzer used during rehearsals.
At the time of this writing it seems that the cable test subject is removed from Amazon, however the merciless review of Leung still remained online. Engineerclaims that, during his trials, we connect cable to permanently damage in a few moments the Vbus line of the instrument used: "The damage is permanent," wrote the engineer. "I tried to reset the analyser Twinkie and flashing the firmware, but the fault continues to occur".
The connection with the Surjtech cable has had fatal effects also Chromebook Pixels permanently damaging personal Leung, both USB ports Type-C not showing more signs of life for connecting other devices. After some analysis on device, Leung has discovered that the cable had been able to impair the function of the controller built into the device, a chip that handles some features as charging via USB or reading data collected by the sensors.
The result is that the notebook is no longer able to boot, if not in recovery mode, since the function Verified Boot of Chrome OS is no longer able to recognize the presence of the chip is damaged. The Google engineer went even deeper into the matter, to find out which item can be so dangerous inside a simple cable for data transfer. Leung has so tested the cable with some tools, uncovering some embarrassing aspects regarding the design choices.
"They seem to have totally wrong cable connections. The ground pins on the end Type-A is connected with the Vbus pin of the end Type-C, and Vbus pin of the Type-A port is connected to the door mass Type-C ". If that wasn't enough, Leung has found other questionable design choices: resistors with resistances below the configuration pull-down and connected specifications do not pull-ups, missing cables. Even if it worked, then the cable would not be blue, despite using 3.1 connector USB and SuperSpeed logo.
Defects in the Surjtech cord are many, perhaps too many, according to Leung, who began to doubt the real powers of the company in the production of products of this type. Even more absurd, almost surreal, the description on the Amazon page for the product in question, which could still be found on the Google cache. The below in full:
Well-made with High Quality: Best quality cable in the market-aluminium alloy connector & high density braided nylon net for long-term use The combination of sturdy construction with a flexible jacket and 3.1 USB Type b connector with molded strain relief provides a cable with reliable performance and long life.
In short, save is a sacred right of buyers, but one must always consider well the choice of a product by assessing the proper relationship between quality and economy. In the case of cable Surjtech product reviews speak for themselves, and judgment from users of a star out of five is more than eloquent.
No comments:
Post a Comment