The Cisco 1GBASE Quad Small Form-Factor Pluggable (QSFP) portfolio offers customers a wide variety of high-density and low-power 1 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider applications. The QSFP-1G modules are our latest generation of 1G transceiver modules solution based on a QSFP form factor. Cisco QSFP-1G-SM-SR The Cisco QSFP-1G-SM-SR QSFP module supports link lengths of up to 2 kilometers over a standard pair of G.652 Single-Mode Fiber (SMF) with duplex LC connectors. The 1 Gigabit Ethernet signal is carried over four wavelengths. Multiplexing and demultiplexing of the four wavelengths are managed within the device. The operating temperature range is from +1 to +6°C with an optical link budget of 4.2 decibels. This 4.2-decibel link budget offers the ability to support the loss from patch panels in the link in a data center environment. QSFP 1G SM-SR is interoperable with QSFP-1G-CWDM4-S. https://elecena.pl/product/30647795/cisco-qsfp-100g-sm-sr-rf-1-x-lc-duplex-100gbase-cwdm4-network 2026-09-01 https://elecena.pl/product/30647795/cisco-qsfp-100g-sm-sr-rf-1-x-lc-duplex-100gbase-cwdm4-network 2026-09-25