Cisco Systems QSFP-40G-LR4-S QSFP 40GBASE-LR4 Trnscvr Mod, LC, 10km, Enterprise-Class Cisco compatible Brand Name Cisco Item model number QSFP-40G-LR4-S= Item Weight 1.8 ounces Product Dimensions 5.91 x 6.3 x 0.39 inches Item Dimensions L x W x H 5.91 x 6.3 x 0.39 inches Processor Count 1 Voltage 240 volts