Your 100 Mbps fiber connection should work well for your NAS.
Your 100 Mbps fiber connection should work well for your NAS.
If we were discussing WiFi, I've noticed some users struggling with Realtek. It's not as straightforward as wired Ethernet, where there are fewer issues, and even then, Realtek chipsets tend to be less efficient both over the cable and on the CPU. WiFi relies heavily on precise setup for a stable connection, or it can affect the performance of all connected devices due to inefficient radio usage. Regarding the other points, I'm still trying to understand how NAS and SMB fit into this discussion. If you're using WiFi to connect to a local NAS, you definitely want the top-quality card available, while broadband speed isn't a concern in that scenario.
The Wi-Fi card is being installed in the NAS, swapping the USB dongle in an effort to improve slow data transfer rates.
You're linking a NAS to your network via WiFi to achieve maximum performance. While you won't match wired connections, upgrading to a high-end WiFi card and access point can bring speeds close to what an HDD would offer. A Seagate Ironwolf drive, for example, can handle twice the workload, while a SATA SSD provides five times more capacity. Improvements are possible, but reaching 100MB/s is unlikely without WiFi 6 or ideal settings like a 160MHz channel and no interference. My attempt with a similar configuration still caps around 70-80MB/s, even when using the NAS on a wired link.