Meaning – The term KBps, or kilobits per second, refers to the unit used to measure data transfer rates that mathematically correspond to 1,000 bits per second. That means a 300 Kbps connection can transfer 300,000 bits in one second. 1,000 Kbps is equal to 1 Mbps.
Throughout the 1990s and early 2000s, Kbps remained the standard way to measure data transfer dates. However, broadband connections such as cable and DSL now offer speeds of several megabits per second.
The lowercase “b” in Kbps is significant. It stands for “bits,” not bytes (which is represented by a capital “B”). Since there are eight bits in one byte, 400 Kbps is equal to 400 ÷ 8, or 50 KBps. Because data transfer speeds have traditionally been measured in bps, Kbps is more commonly used than KBps.
Example of usage – “Dial-up modems was rated by their maximum download speeds, such as 14.4, 28.8, and 56 Kbps.”