Let's see the usual speeds.
SATA is 1.5 Gbps or better.
USB 2.0 is 480 Mbps or lower.
WiFi is a shared 54 Mbps and again can go up or down but is SHARED.
To access a HDD over WiFi means a lot more traffic if the HDD is on WiFi. Your PC sends a request, the router gets the packet and sends it to the WiFi HDD, then HDD finally sends the packet to the router and the router finally sends this back to your PC.
So far I've found this to cause the speeds to plummet so low that most folk pull the plug.
Can't find any upside to HDDs on WiFi links.
I recently purchased the 2GB GoFlex Home wireless external hard drive from Seagate and am primarily using it as a source for my movie/audio/computer program files to be accessed remotely by any computer through my network (and or through the internet via Seagate's remote access app/program).
I was wondering what would be the benefit if any of setting up a home server, not that we have technology such as wireless hard drives that let multiple computers access files via the wireless network? If there is a large advantage I am certainly interested in what the pros are, and what materials/products/manufacturers people would recommend.