In fact i do not care about the LAN, but I do care to the WLAN because the device will be connected wirelessly to devices such as TV, Xbox, bluray and laptops so I think that there must be some rate for the speed and not a specific speed
i dont want to by it then i find that my internet speed are faster than it
How fast is the device capable? b/g or n? all devices have the same capabilities? If the device can’t do the same speed as the router then for that particular device the speed would be lower than another device.
How far away is the device from the router? May make a difference especially depending on the quality of the router. The speed rates can vary & not just a single rate for everything. e.g. my ereader can only do 11g while my current laptop can do 11n; there is a huge speed difference when I transfer files to/from the ereader & the laptop; the xfer speed from the laptop to the ereader is limited by the speed capability of the ereader.
Then, there is overhead. When I backup my music files from the 3T MBL to my usb 3 hard drive on the computer, the megabyte/sec depends on the directory & number of files in the usb3 hdd. I just did a couple of incremental file backups & on 1 directory I got about 20 megabyte/sec for about 4 gigs; on the other incremental file backup, I got about 35 MB/sec.
I googled to check on how fast the pcie bus can handle speeds & read that it can just do about 60 MBs max; so I don’t expect my usb3 hdd using a pcie usb3 adapter will approach even 50 MBs.
Trying to get a single number to fit all your devices won’t work.