Description
Automatic detection of MDI / MDIX
All ports support auto-polarity MDI / MDIX. This eliminates the need for crossover cables or ports uplink. Any port can be connected to a server, hub, router, or switch using “direct» Ethernet-twisted-pair.
Flow Control
All ports support flow control 802.3x. This feature allows you to prevent the loss of packets by transmitting a signal of a possible buffer overflow. The suspension continues until the packet until the port is ready to receive new data. This provides a reliable connection of all connected devices.
At 6% thinner than its predecessor, the ThinkPad X1 Carbon Gen 7 is only 14.9mm thin—or just a hair more than a half inch—and it weighs only 2.4lb/1.08kg. This lightweight package reinvents portability and untethers you from the office. With a battery life of up to 18.3 hours, and Rapid Charge when you do need more juice, you can go wherever the road—or the sky—takes you*. 
Built-in High Gain Dual-Polarized Antenna Dedicated metal reflector ensures higher gain and lower noise interference 
