The throughput of a QSFP-DD (Quad Small Form-Factor Pluggable Double Density) transceiver module depends on the specific variant and the data rates supported by that module. QSFP-DD is a form factor designed to support high-speed data transmission, and it is used for various applications, including 200 Gigabit Ethernet (200GbE) and 400 Gigabit Ethernet (400GbE).

The most common data rates associated with QSFP-DD modules include:

1. 200 Gigabit Ethernet (200GbE):

• QSFP-DD modules can support an aggregate data rate of up to 200 gigabits per second (Gbps) by utilizing various technologies, such as PAM4 modulation.

2. 400 Gigabit Ethernet (400GbE):

• QSFP-DD modules are designed to achieve an aggregate data rate of up to 400 gigabits per second (Gbps). This is typically accomplished through the use of multiple electrical lanes or optical channels.

It's important to note that the throughput of a QSFP-DD module is not only determined by the form factor but also by the specific technology, modulation schemes, and standards it adheres to. Additionally, the module must be compatible with the networking equipment and infrastructure in use.

For the most accurate and up-to-date information on the throughput of a particular QSFP-DD module, it is recommended to refer to the datasheet or technical specifications provided by the module's manufacturer. The datasheet will provide details on the supported data rates, modulation schemes, and other relevant parameters for that specific module.