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.
3.5 -Inch touchpad with multi touch gesture support
10 m wireless range
Works with Windows XP or later 
Delivering sharp, high-quality A3 output with the speed, versatility and footprint of an A4 device, the B840 offers low running costs and low total cost of ownership, bringing versatile A3 mono printing to small and medium workgroups. 
450Mbps wireless speed ideal for interruption sensitive applications like HD video streaming** 
