as far as i can tell its just for all practical purposes nothing but the price ...... there is some technical mumbo jumbo ....(see below) but unless your cable runs are reaching toward maximum....why bother???
"The maximum length of a standard USB cable is 5.0 meters (16.4 ft). The primary reason for this limit is the maximum allowed round-trip delay of about 1500 ns. If a USB device does not answer to host commands within the allowed time, the host considers the command to be lost. When USB device response time, delays from using the maximum number of hubs and delays from cables connecting the hubs, host and device are summed, the maximum delay caused by a single cable turns out to be 26 ns [10]. The USB 2.0 specification states that the cable delay must be less than 5.2 ns per meter, which means that maximum length USB cable is 5 meters long. However, this is also very close to the maximum possible length when using a standard copper cable."
from wikipedia
The difference between USB1 and USB 2 is that the USB 2 is shielded (like TV coaxial cable) to prevent signal loss between computer and printer. Look for a printer cable that is clear with the shielding visible.
The difference between 20 degrees and -30 degrees is 50 degrees. This is because you subtract the smaller value (-30) from the larger value (20) to find the difference. Mathematically, 20 - (-30) = 50.
30
49
-10 degrees
50 - 20 = 30 degrees 20 is (30) less than 50 and 50 is (30) more than 20 hence difference is 30.
The temperature difference between -30 degrees and 20 degrees is 50 degrees. Negative 30 degrees is 50 degrees lower than 20 degrees.
The difference between 20 degrees Celsius and -30 degrees Celsius is 50 degrees. This is calculated by subtracting -30 from 20, which is the same as adding 30 to 20, resulting in 50 degrees. In terms of temperature, this difference indicates a significant variation, with 20 degrees being much warmer than -30 degrees.
30
It is: 29-23 = 6
29 - 23 = 6
The question does not make sense since 20 and 30 are not prime numbers!
The average equals 30. So 10