The speed of an SFP (Small Form-Factor Pluggable) port depends on the type of SFP module it accommodates. SFP ports are used in networking equipment, such as switches, routers, and network interface cards, to provide different data rates based on the type of SFP module installed. 

Here are some common SFP modules and their associated speeds:

1. 1G SFP: Supports a data rate of 1 Gigabit per second (Gbps). This is commonly used for 1 Gigabit Ethernet connections.

2. 10G SFP+: Supports a data rate of 10 Gigabits per second (Gbps). Used for 10 Gigabit Ethernet connections.

3. 25G SFP28: Supports a data rate of 25 Gigabits per second (Gbps). Used for 25 Gigabit Ethernet connections.

4. 40G QSFP+: QSFP (Quad Small Form-Factor Pluggable) modules are similar to SFP but designed for higher data rates. QSFP+ supports 40 Gigabits per second (Gbps) and is used for 40 Gigabit Ethernet connections.

5. 100G QSFP28: QSFP28 supports a data rate of 100 Gigabits per second (Gbps) and is used for 100 Gigabit Ethernet connections.

6. 200G QSFP56: QSFP56 supports a data rate of 200 Gigabits per second (Gbps) and is used for 200 Gigabit Ethernet connections.

7. 400G QSFP-DD: QSFP-DD (Quad Small Form-Factor Pluggable Double Density) supports a data rate of 400 Gigabits per second (Gbps) and is used for 400 Gigabit Ethernet connections.

In summary, SFP ports themselves are not inherently faster; their speed is determined by the type of SFP module they support. As networking technology advances, higher-speed SFP modules are developed to meet the demands of faster data transfer rates in modern networks. When upgrading or selecting networking equipment, it's essential to consider the speed requirements and choose the appropriate SFP module for the desired data rate.