It offer more more resistant to EMI/RFI as compare to UTP as extra shielding is included in STP. Its price is also a little high as compare to UTP but both use the same connector RJ-45. Thanks Asif
Shielded twisted will pick up much less noise and interference from electromagnetic radiation than an unshielded cable.
UTP-Unshielded Twisted Pair. Normally UTP contains 8 wires or 4 pair. 100 meter maximum length. 4-100 Mbps speed. STP-Shielded twisted pair. 100 meter maximum length. 16-155 Mbps speed. Lower...
Twisted pair is twisted to prevent (or lessen) crosstalk. That's when electric signals cross over to another wire.
There are mainly three advantages: 1] less cost2]data transfer rate is 100 mbps3]it can support more length.