ZyXEL Communications ZyXEL Prestige 660HWP - Wireless router + 4-port switch - DSL - Ethernet, Fast Ethernet, 802 .... (Z - Connectivity: 4, 1, Weight and dimensions: 250 x 170 x 36 Millimeter, 610 Gram, Energy management: 50/60 Hz, 100-240 Volt, Environmental conditions: 0 to 40 degrees Celcium, -20 - Celcium 60 degrees, from 20 to 85 Percent, from 20 to 90 Percent, Protocols: DHC