Cat 3 (4,5) can have two or four pair (or up to 25 pair or more)<BR><BR>Don't be confused with "plain old phone wire" (like DIW) which is not certified, it just also happens to be unshielded ...

Last month, we covered unshielded twisted pairs (UTP) to carry audio. The highest-quality UTP is computer cable, premise/data cable. It's called Cat 5, Cat 5e or Cat 6. Cat 5 has been around for more ...

With state-of-the-art DSP technology and mixed-mode signal technology, the RTL8153 offers high-speed transmission over CAT 5 UTP cable or CAT 3 UTP (10Mbps only) cable.

With state-of-the-art DSP technology and mixed-mode signal technology, the RTL8153 offers high-speed transmission over CAT 5 UTP cable or CAT 3 UTP (10Mbps only) cable.