Which Ethernet standard provides a maximum speed of 10 Gbps over twisted pair cables within a certain distance?

The Ethernet standard that provides a maximum speed of 10 Gbps over twisted pair cables is indeed 10GBASE-T. This standard is specifically designed to support high-speed data transmission over standard Cat 6 and Cat 6a twisted pair cabling, allowing for 10 gigabit Ethernet connections over distances up to 100 meters. The use of twisted pair cables, rather than fiber optics, makes it more flexible and cost-effective for installations where existing cabling infrastructure can be used.

10GBASE-T employs advanced encoding techniques such as PAM-16 (Pulse Amplitude Modulation with 16 levels) to achieve its high throughput, which is critical for meeting the demands of modern data traffic. This makes it suitable for applications in data centers, enterprise networks, and other environments where high bandwidth is necessary.

The other standards listed, while also important in the evolution of Ethernet, do not provide the same speed. 10BASE-T operates at 10 Mbps, 100BASE-TX supports speeds of 100 Mbps, and 1000BASE-T allows for 1 Gbps. Thus, 10GBASE-T stands out for its capability to handle 10 Gbps, reflecting its role in high-performance networking scenarios.