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Forum Discussion
rusty_mahler
Mar 17, 2026Aspirant
USB HD attach to R6900v2
I believe I read (likely in the user manual) that there's a USB port to which I can connect an external HD. What wasn't clear was maximum size for the HD. Also, I was surprised to see the drive ...
StephenB
Mar 18, 2026Guru - Experienced User
rusty_mahler wrote:I guess I could go with a 5Tb drive, formatted prior to the router to ext4. That would satisfy my plan.
This KB article suggests that 4 TB might be the max partition size that will work:
- https://kb.netgear.com/24059/What-are-the-USB-drive-requirements-for-ReadySHARE-on-my-NETGEAR-router
There's not much in the forum about the max drive capacity, but there is one user who reported that a 5 TB drive was not detected:
- https://community.netgear.com/discussions/home-wifi-routers-nighthawk/connecting-hard-drive/1271761
CrimpOn wrote:The Forum contains numerous posts describing "issues" with accessing drives connected to Nighthawk router USB ports.
The router only supports SMB 1.0/CIFS for file explorer - which requires some adjustments to current Windows to work. AFAIK it is not supported at all in recent MacOS.
Guest access is another common issue - Windows has tightened up anonymous access. There are some settings to overcome that, but those are a bit harder to make than enabling the SMB 1.0 client.
One approach is to use FTP.