The Cisco IP Phone Power Adapter 3 is specifically designed to power Cisco 7800 Series IP Business Phones. Localised for use in North America, this phone plug delivers wall power for models 7811, 7821, 7841 and 7861. The phone power supply is required in situations where PoE deployment is not possible.
Cisco QSFP to QSFP copper direct-attach 100GBASE-CR4 cables are suitable for very short links and offer a cost-effective way to establish a 100-Gigabit link between QSFP-100G ports of Cisco switches within racks and across adjacent racks.
Cisco offers a comprehensive range of pluggable optical modules for the Cisco ONS family of multiservice platforms. The wide variety of modules gives you flexible and cost-effective options for all types of client interfaces. Cisco offers a range of GBICs for Gigabit Ethernet use, a wide variety of SFP modules, XFP modules and has recently introduced SFP+, CXP and CFP pluggable modules. These small, modular optical interface transceivers offer a convenient and cost-effective solution for an array of applications in the data center, campus, metropolitan-area access and ring network, storage area network, and long-haul network.