transfer speeds depends on many factor, if you transfer small or big files and if you have a gigabit LAN and if may applications are active or not, or more then one user is active.
I can reach typically 25-30 MByte/s for reading and writing large files like video files , reading is faster then writing.
If you read or write 1000 files of 1 MB then this speed will not be achieved and will probably be lower then 5 MB/s due to need of writing file headers and so on to disk for each individual file.
ps nwsp1 also has a gigabit network interface but due to limited RAM and slower cpu it will never be faster then 10-12 MB/s
The nwsp2 has much more RAM but also a faster cpu 800 Mhz instead of 400 Mhz. When writing many small files transfer speed will drop below 1 MB/s
below a screenshot showing performance of the nwsp2 when reading and writing a file using samba server of the nwsp2 from using a windows 7 PC (explorer)
But as said transfer rates are dependent on many factors and can be lower as result of that then shown in the graph (no guarantee ;) )
smb1-1.JPG
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