Worth using a 4-port NIC in a home network setup?

Hey everyone,

I’ve been thinking about upgrading part of my home setup and wanted to get some real-world opinions before I go any further. I’ve been running a small home server for backups, media, and a bit of tinkering, and lately I’ve noticed that network congestion becomes an issue whenever multiple things are happening at once. File transfers slow down, streaming buffers, and sometimes remote access feels laggy for no obvious reason.

One thing I’ve been reading about is using a multi-port network interface card, specifically a 4-port NIC https://serverorbit.com/network-devices/network-interface-ca…, to separate traffic instead of pushing everything through a single connection. The idea of dedicating ports to different tasks (like one for backups, one for media, one for general LAN traffic) sounds appealing, but I’m not sure how much difference it makes in practice versus just upgrading a switch or tweaking network settings.

I’m also curious about power efficiency. My server runs 24/7 and I try to keep things modest, so I wonder how much impact adding extra network hardware has when you’re aiming for a relatively low-power setup overall. I don’t need enterprise-level performance, just something stable and sensible.

Has anyone here actually seen noticeable benefits from running a 4-port NIC in a home or small lab environment, or did it turn out to be more complexity than it was worth?