ECI Networks QSFP-40G-SR4 QSFP+ Module - For Data Networking, OpticalECI Networks QSFP 40G SR4 QSFP+ Module For Data Networking, Optical Network 1 x MPO 40GBase SR4 Network Optical Fiber Multi mode 40 Gigabit Ethernet 40GBase SR4 40 Hot swappable VPN: QSFP 40G SR4 ECI SKU: 154370NDN UPC: Supports optical fiber cable for durable performance, minimal signal loss, and fast data transfers to greater distances 40 Gigabit Ethernet for efficient data transfer and fast connectivity Typically used for short distance, multi mode