Cisco Systems C881W-E-K9 Cisco 881 Eth Sec Router with 802.11n ETSI Compliant Brand Name Cisco Item model number C881W-A-K9 Hardware Platform PC Operating System Cisco IOS Advanced Security Item Weight 0.32 ounces Product Dimensions 0.5 x 0.5 x 0.5 inches Item Dimensions L x W x H 0.5 x 0.5 x 0.5 inches Voltage 240 volts