Cat8 Ethernet Cable
Ethernet 25-40 Gbps cho kết nối switch-to-switch trong trung tâm dữ liệu. Giới hạn khoảng cách 30m. Quá mức cần thiết cho hầu hết ứng dụng gia đình/văn phòng.
Category 8 cabling supports 25 and 40 Gigabit Ethernet, the fastest twisted-pair grade standardized, but only across a 30-meter channel. That short reach reflects a narrow purpose: switch-to-switch and server-to-switch links inside a single data-center rack or adjacent racks, not general building wiring. For homes and offices, where gigabit and multi-gigabit links dominate, its bandwidth goes unused and the stiffer, heavily shielded cable is harder to route. Power over Ethernet up to 100 watts is still supported on the same conductors. RJ45 terminations keep it backward compatible with slower equipment. Cat8 patch cords cost $10 to $25.