FastE or Fast Ethernet - is a term for a number of Ethernet standards that carry traffic at a rate of 100 Mbps (megabits per second), against the original Ethernet speed, which was slower, at 10 Mbps. Of the 100 megabit ethernet standards 100baseTX is by far the most common and is supported by the vast majority of ethernet hardware currently produced.

100BASE-TX runs over two pairs of wires in category 5 cable. A FastE connection is useful for a company that uses lots of bandwidth and needs more than 1 full DS3 line (45 mbps). The local loop can be costly if the location is far from the network provider central office.

It is usually beneficial if it's in a colocation facility where the local loop is minimized and there may only be a small cross connect charge to install a FastE line.

Also see:

T1 Line Promotion Pricing

T3 Line or DS3 line Promotion Pricing