Gbps has a full form of ” Gigabits per second ” 1Gbps is 1,000 Megabits per second (Mbps), or 1,000,000,000 bits per second.
For many years only Mbps and Kbps were used to measure data transfer speeds .
Using modern hardware interfaces, you can transfer data over one gigabit per second, which makes Gbps a very important unit of measurement.
For example, such interfaces include SATA 3 (6Gbps), USB 3.0 (5Gbps), and Thunderbolt (10Gbps). Additionally, Gigabit Ethernet can also transfer data up to 1Gbps.
By the way, storage capacity is typically measured in bytes, while data transfer speeds are typically measured in bits. Therefore Gbps is more commonly used in GBps.