The data rate of a network connection is normally measured in bits per second, generally abbreviated as bps instead of b/s. Manufacturers of networking equipment rate the maximum network bandwidth level that their products can support using the standard units Kbps, Mbps, and Gbps.
Megabits per second (Mb/s) vs. Megabytes per second (MB/s)
Since kilo- means the value thousand, it is used to indicate the lowest speed in this group:
For historical reasons, data rates for disk drives and some other non-networked computing devices are sometimes quoted in bytes per second (Bps with a capital B) rather than bits per second (bps with a lowercase 'b').
Since one byte equals eight bits, these ratings can easily be converted to the corresponding lowercase letter 'b' by multiplying by 8:
