What is the model number of the QNAP QSW-M408S switch?

The model number of the QNAP QSW-M408S switch is QSW-M2106.

How many ports does the QNAP QSW-M408S managed switch have and what types are they?

The QNAP QSW-M408S managed switch has a total of 6 ports: 6 x 2.5GbE (1G/100M) ports and 4 x 10G SFP+ ports.

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QNAP QSW-M408S 6-port layer 2 managed switch. 6 x 2.5GbE (1G/100M) ports and 4 x 10G SFP+ ports. Easy management with web browser.