What type of copper wire is used in the Nippon Labs Cat5E patch cables?

The cables are made of four twisted 24AWG pure copper wire pairs.

What is the length of each Ethernet cable in the Nippon Labs (10 Pack) Cat5E package?

Each Ethernet cable in the package is 5 feet long.

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Nippon Labs (10 Pack) Cat5E 5FT UTP Ethernet Network Booted Cable - Black - 5 ft. - 24AWG RJ45 Enhanced Cat5E Patch Cable (5FT 10 Pack Black)

This Category 5E patch cables are designed for home and office network connection. They are ideal for connecting computers to routers, patch panels, cable modems and switches. Each comes UL verified and meets TIA/EIA-568-C.2 Cat.5E standards.
Our Category 5E cables are made of four twisted 24AWG pure copper wire pairs cable with a PVC jacket and snagless molded boot.
It’s terminated with RJ45 plug with 50 micron gold plated contacts. The snagless bubble design protects the locking tabs on the RJ45 connectors from being damaged or accidental snapped off. Our Category 5E cables are offered in a variety of lengths and colors for your needs.
Conductor: 4-pair UTP (Unshielded Twisted Pair) 24 AWG stranded bare copper
Connectors: RJ45 plug with 50 micron gold plating contacts
Jacket: PVC
Certification: Compliant with TIA/EIA standard by UL and ETL; RoHS Compliant
Wiring: T568B standard