QSFP+ Transceiver Designed for Connection to Your Network Switch or Server
This QSFP+ transceiver allows you to connect a multimode fiber optic cable to a 40 Gbps network router, server or switch. It transmits data up to 400 meters (1312.3 feet) using an 850 nm wavelength. The zinc housing protects against electromagnetic interference (EMI) and excessive power dissipation.

Functionally Equivalent to Cisco QSFP-40G-SR4 Transceiver Module
The MSA-compliant N286-40G-ESR4-A functions just like the equivalent Cisco QSFP-40G-SR4 transceiver module and other OEM modules and is manufactured to meet or exceed Cisco specifications. You can use this transceiver with any compatible router, server or switch and receive the same performance as the QSFP-40G-SR4.

Hot-Swappable for Installation Without Network Interruption
This input/output device is fully hot-swappable, so you can install it without a potentially costly 40 Gbps network shutdown or device reboot. Just plug the QSFP+ end of the transceiver into your network device. The other end has an MTP/MPO connector to link with multimode fiber cable (sold separately). A push/pull tab connector is easily accessible in high-density data center applications and makes the plug-and-play transceiver easy to install and remove with one hand.

Supports Digital Diagnostic Monitoring (DDM) for Real-Time Status Monitoring
DDM support lets you keep track of various operating status in real time including transceiver temperature, input and output power, and supply voltage.