People often complain that their ISP promised 512kbps connectivity but they are seldom able to download any file at 512 KBps. They fail to notice the difference in cases of the units and hence think their ISP is cheating them or offering them poor quality service. As mentioned earlier data transfer speeds are always calculated in terms of kilo bits per second (kbps) so an ISP connectivity of 512 kbps promises of transfer of at the max 512 kilo bits per second.

KBps- KiloBytesPer Second

Kbps-Kilobitspersecond

Internet connectivity Download speed (approx)
256 kbps 31.3 KBps
384 kbps 46.9 KBps
512 kbps 62.5 KBps
768 kbps 93.8 KBps

__________________
The MOSS
Master of Solution Service

Ya, most of them donot understand the difference between kbps and kBps...

It's just kbps÷8.

And pactically, a 512Kbps DSL connection can give you around 55 KBps download rate. Means around 4.5 GB per day. That is you can download a 700 MB file in around 4 hours.