What determines the speed data transfer in LAN cable?

"LAN" is a very general term that standards for Local Area Network. In and of itself a Local Area Network (LAN) doesn't require a cable and could be Wireless Local Area Network (WLAN). read more

Physics. Speed of light in a vacuum is approx 186,000 miles per second. Speed of an electrical signal through a copper LAN cable is a little slower at approx 127,000 miles per second. If however you mean bandwidth or throughput then this is determined by the technology used to push the data through it. read more

Although others have made their point, to increase LAN speed. You cannot dramatically increase it. The LAN transfer speed on any computer(Laptop or PC ) depends on the capability of the network card viz 10/100/1000 in mbps. read more

So, in short: If you transfer lots of data over your network, upgrading your cables from old Cat5 might help, and it's so cheap that you might as well try it out. But don't stress over it. For home use, the cables you use aren't going to be a huge deal. Sincerely, Lifehacker. Photo by tlsmith1000. read more