First of all , I would like to thank Infibeam team for their excellent delivery service. The only site I can trust next to Flipkart and infact I find the products much cheaper than any other ecommerce sites. I would recommend everyone to buy from this site. Transfer speed 24 MB/s (Mega bites per second not mega bits per second because earlier is more relevant). On my windows 7 Dell XPS laptop, Core i7 2 GB RAM. No difference between usb 2 or usb 3 ports (althouth a message is displayed that this device can perform faster when plugged to usb 2 socket). Multifile transfer speed ~ 25 MB/s on my desktop: windows xp, pentium 4, 1 GB RAM, USB 2.0 port, Multifile transfer : Transfer speed : 2.38 GB in ~ 11 minutes (~5 MB/s), single file 230 MB in ~ 11 sec (21 MB/s). So it is OK while comes to transfer speed. Build quality (4/5), cannot get better than Transcend. My verdict is good pen drive.