Intel 40G QSFP+ SR Module (Model: E40GSFP-SR) 850M

A hot-pluggable Quad Small Form-factor Pluggable Plus (QSFP+) transceiver designed for 40 Gigabit Ethernet (40GbE) . It operates over Multi-Mode Fiber (MMF) using 850nm VCSEL technology to establish high-speed, short-distance links, typically up to 100/150 meters over standard OM3/OM4 fiber. This module is essential for inter-rack and intra-data center connectivity.

The Intel E40GSFP-SR is an optical module specifically engineered to meet the demands of high-bandwidth, short-range applications. It is compliant with the 40GBASE-SR4 standard, which dictates the use of four independent lanes, each transmitting at $\approx 10$ Gbps, for an aggregate 40 Gbps data rate.

• Wavelength and Media: It uses 850 nm VCSEL lasers and is designed exclusively for Multi-Mode Fiber (MMF).

• Reach: The reach depends on the fiber type: typically 100 meters on OM3 fiber and 150 meters on OM4 fiber, providing robust short-distance performance.

• Connector: It utilizes the MPO/MTP connector interface (Type B) for the multi-fiber ribbon cable required for parallel optics.

• Application: It’s primarily used for connecting Intel networking hardware (like NICs and switches) over short runs within the data center, often supporting 40G-to-4x10G breakout applications.

• Compliance: It is QSFP+ MSA compliant, ensuring compatibility with other MSA-compliant switches and routers.