yes i was doing 1 file at a time, a 2gb file and just compared the two, speed is still good not complaining about it, its great for backing up and syncing just wanted to iron out the issue why they are so different in speed. I also have read that it does multiple files at a time, if i try to sync a folder it doesn't look like its syncing more than 1 file at a time. another interesting that it took around 2-3 mins to transfer 7gb, so it must be working pretty well. this is also just a little dlink 1gbps switch from centrecom which cost $25 connected up to my adsl router because my adsl modem is only 100mbit, so to get 90MB/s on Cat5e im pretty happy and 50MB/s on btsync is also great as it might be just the average like you said. to transfer 7gb in 2-3min cant complain. quad core htpc FTW now to pay that power bill.