Not this one again…
USB-A and USB-B are only required to be designed to survive 1500 mating cycles. USB-C is required to survive 10,000, just because it’s bigger and chunkier doesn’t mean it’s more robust.
That is the difference between theory and practice.
Throughout my life and my career in IT (spanning over 20 years), I have dealt with thousands of cables and devices featuring USB-B ports and connectors. I can recall, at most, a mere handful of failures—all of which were triggered by someone tripping over or snagging a cable. In most of those instances, the devices themselves were even knocked over.
The same holds true for USB-A connectors and ports.
Their rated number of insertion cycles is routinely far exceeded without any resulting contact issues. I have worked with plenty of notebooks, hard drives, CD drives, printers, measuring instruments, keyboards, mice, and the like that underwent anywhere from 2 to 10 insertion cycles *every single day* for five years—and were subsequently retired while still in perfect working order. That amounts to a total of between 3,000 and 18,000 insertion cycles.
USB-C connectors and ports, however, are far more delicate due to their compact size and the sheer density of their contact pins.
You need only look on eBay, at surplus dealers, and similar outlets to see just how many devices featuring USB-C ports have failed—often while still under warranty—and are now being sold as defective. The volume of such failures is many times higher than was ever the case with USB-B or USB-A.
I own three high-end microphones—priced between €250 and €500—as well as an equally expensive USB-C audio interface; I purchased all of them for roughly 10–15% of their original retail price, and when they were less than six months old, because they suffered from defective USB-C ports. After replacing the faulty USB-C ports, everything now functions flawlessly again.
No one can convince me that devices like these would accumulate 1,000 insertion cycles within a mere six months to a year. To verify this, you need only ask the tens of thousands of mobile phone, tablet, and laptop repair shops worldwide how many devices they repair every day that have defective USB-C ports—devices that are less than 5, or even 3, years old and are nowhere near reaching 10,000 or even 3,000 insertion cycles. These are, by far, the most common defects encountered during repairs.
However, the biggest problem lies in the cheap USB-C ports and connectors that are typically installed.
These components are 5 to 10 times cheaper than high-quality USB-C ports and connectors, and even cheaper variants have since appeared on the market.
Furthermore, the figure of 10,000 insertion cycles applies only under laboratory conditions; in reality, the Mean Time Between Failures (MTBF) sits at around 3,000 cycles, with various reports citing inflated figures of 2,000 to 5,000 cycles in everyday use.
The cheap ports, however, typically average only 500 to 1,500 insertion cycles in day-to-day use.
One would have to bury one's head very deep in the sand to deny the existence of these problems.