Yes, you can use LACP with your motherboard's built-in NIC and an additional NIC.
Yes, you can use LACP with your motherboard's built-in NIC and an additional NIC.
Yes, it's feasible to achieve higher speeds by combining your motherboard's built-in port with an external 1Gbps port card. This setup can push the theoretical throughput to around 2Gbps when using Link Aggregation/LACP mode. You can pair the internal NIC with a third-party adapter for additional functionality and extra ports. If you're considering purchasing one on eBay, it could provide both an extra NIC and more USB connections.
Reject this and even for assistance that relies entirely on whether the attached device can handle it and if you're managing various source/destination connections. LACP doesn't boost a single data stream, you could run two streams at 1Gbps each but not one at 2Gbps.
You're pointing out that a single stream can't deliver 2Gbps, and while SMB v3 aims to handle multiple links, it isn't fully supported in Windows and has significant restrictions on Linux.