The data rate of a QSFP (Quad Small Form-Factor Pluggable) module depends on the specific standard and type of module. Different QSFP modules are designed to support various data rates to meet the requirements of different applications in data centers, telecommunications, and networking. Here are common data rates associated with different types of QSFP modules: 

1. QSFP:

• QSFP modules are designed for various applications, including 40 Gigabit Ethernet (40GbE).

• Data Rate: Up to 40 Gbps.

2. QSFP+:

• QSFP+ (Quad Small Form-Factor Pluggable Plus) modules are an enhanced version designed to support higher data rates.

• Data Rates: Commonly used for 40 Gigabit Ethernet (40GbE) and 4x10 Gigabit Ethernet (4x10GbE) applications.

• Some QSFP+ modules can also support data rates up to 56 Gbps for InfiniBand applications.

3. QSFP28:

• QSFP28 modules are designed to support even higher data rates compared to QSFP and QSFP+.

• Data Rates: Commonly used for 100 Gigabit Ethernet (100GbE) applications.

• Some QSFP28 modules can support data rates up to 112 Gbps for certain applications.

4. QSFP56 and QSFP-DD:

• QSFP56 and QSFP-DD are newer versions designed to support higher data rates in emerging high-speed networks.

• Data Rates: QSFP56 supports data rates up to 200 Gbps, and QSFP-DD supports data rates up to 400 Gbps.

• These modules achieve higher data rates through increased lane count and advanced modulation techniques.

It's important to note that the specific data rate supported by a QSFP module depends on the standard it adheres to (e.g., Ethernet, InfiniBand) and the technology used. When selecting QSFP modules for a particular application, it's essential to consider the compatibility with the network equipment and the desired data rate for optimal performance.