I have no idea of why you want SFP+ when using cheap Cat6 is so much cheaper. The 10Gbase-T card from QNAP for this is the QXG-10G1T, which is $107, and you use cheap Cat6 cable to connect this to your computer's 10G port.

But if you insist on SFP+, why are you considering anything except a QNAP supported card for this model ? Where do I get this information ? Right from the www.qnap.com website.

These are QNAP approved cards that you can use for SFP+

https://www.amazon.com/QNAP-QXG-10G2SF-CX4-Dual-Port-Network-Expansion/dp/B07R9PNZ3M/ref=sr_1_3?dchild=1&keywords=QXG-10G2SF-CX4&qid=1616942991&sr=8-3

https://www.amazon.com/Mellanox-Connectx-3-Pro-Ethernet-MCX311A-XCCT/dp/B00LG7RGI0/ref=sr_1_1?dchild=1&keywords=MCX311A-XCCT&qid=1616943049&sr=8-1

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Why chance a card that is not compatible ?

Bob