Definition - What does 1000Base-T mean?
Techopedia explains 1000Base-T
1000Base-T is a shorthand designation by the Institute of Electrical and Electronics Engineers (IEEE). The 1,000 refers to the transmission speed of 1,000 Mbps, while "base” refers to baseband signaling, which means that only Ethernet signals are being carried on this medium. The “T” refers to the twisted pair cables this technology uses.
1000Base-T can be used in data centers for fast server switching or in desktop PCs for broadband applications. The biggest advantage of 1000Base-T is that it can use existing copper cabling, negating the need to rewire the system with newer optical fiber cables.