What is the difference

The main difference between MB and Mb is:

MB stands for megabyte, a unit of digital information storage.
Mb stands for megabit, a unit of digital data transmission.

Key points:

1. Size:
   • 1 MB (megabyte) = 8 Mb (megabits)
   • 1 Mb (megabit) = 0.125 MB (megabytes)
2. Usage:
   • MB is typically used for file sizes and storage capacity
   • Mb is often used for data transfer rates, especially in networking and internet speeds
3. Capitalization:
   • MB uses a capital B for byte
   • Mb uses a lowercase b for bit
4. Examples:
   • File size: A 10 MB file
   • Internet speed: 100 Mbps (megabits per second)

It’s important to pay attention to the capitalization to avoid confusion, as the difference between MB and Mb can significantly affect calculations and expectations in digital contexts.

Source: Claude.ai