Your 100 Mbps fiber connection should work well for your NAS.
Your 100 Mbps fiber connection should work well for your NAS.
Confirming your connection speed is 100 MB/s, which is roughly 1 Gbps. The Wi-Fi card claims 2974 Mbps (372 MB/s), making it suitable as long as all network devices support 802.11ax. Remember, Wi-Fi operates on shared channels, so other devices using the same frequency can reduce your actual performance. A wired connection might be preferable if possible.
Additionally, using an AX Wi-Fi card means you'll need a compatible wireless router or access point to get the best performance. Without that, speeds will drop to basic WiFi 5 and possibly as low as 400Mbps to 800Mbps, or even 50MBps to 100MBps under ideal conditions. For a NAS setup, a dedicated cable would be the most suitable option.
It seems you might have misunderstood the details. I believe you're likely expecting 100Mbit/s rather than 100MB/s, since I'm not familiar with any UK suppliers offering that speed. Regarding your question, the card should work if the NAS is configured to support a Wi-Fi card, but for better performance, a wired connection would be preferable.
For clarity, several ISPs in the UK offer gigabit speeds. BT provides 900Mbit in many FTTP zones, though it's marketed as gigabit but priced lower due to Ofcom regulations. Hyperoptic delivers gigabit service directly on their network, and a few other providers are known in that space.
as mentioned you really don’t need much for 100mbit. i use a 1gbps setup and even cheaper cards handle over 100+mb/sec downloads easily. i upgraded my network to 10gbps, but a 1000mbit LAN card still adds overhead. since my fiber modem only supports 1000mbit ports, it caps me at 960-970Mbit due to the extra load. if i had used an SFP+ connection, speeds would match 500/100mbit lines—about 10% more than the cost. that would bring me to 1050-1100Mbit. just using the cheapest Realtek card works fine. but with a 100mbit connection, you’re in the clear. however, beyond 300mbit, devices like the Asus Merlin firmware router become slow and consume most of the cpu, throttling your internet. they run stock firmware with hardware support.