H3C QSFP-40G-SR4-MM850 40Gbps 850nm Multimode Transceiver Module

The H3C QSFP-40G-SR4-MM850 is a 40Gbps QSFP+ optical transceiver designed for high-speed short-reach network connectivity over multimode fiber. It operates at an 850nm central wavelength and uses a 12-fiber MPO connector for parallel optical transmission.

The module is designed for compatible H3C networking equipment and supports 40Gbps optical links over 50/125µm multimode fiber. Depending on the modal bandwidth of the fiber, the specified transmission distance is up to 100 meters with 2000 MHz·km MMF or 150 meters with 4700 MHz·km MMF. :contentReference[oaicite:0]{index=0}

H3C QSFP-40G-SR4-MM850 40Gbps Optical Connectivity

The QSFP-40G-SR4-MM850 provides a 40Gbps optical connection for compatible QSFP+ ports. Its SR4 architecture uses parallel multimode fiber transmission, making the module suitable for short-distance high-bandwidth connections within data centers and enterprise network environments.

H3C specifies the module with an 850nm wavelength, 50/125µm multimode fiber, eight active fiber cores, and an MPO-12/PC optical interface. :contentReference[oaicite:1]{index=1}

Multimode Fiber Transmission

The module is designed specifically for multimode fiber (MMF). Transmission distance depends on the modal bandwidth of the installed fiber. H3C specifies up to 100 meters using 2000 MHz·km fiber and up to 150 meters using 4700 MHz·km fiber.

850nm Optical Wavelength

The QSFP-40G-SR4-MM850 operates at a nominal 850nm central wavelength. This wavelength is commonly used for short-reach 40Gbps multimode fiber applications.

MPO-12/PC Optical Interface

The transceiver uses an MPO connector with a 12-fiber PC-polished interface. The parallel-fiber design provides the optical paths required for 40Gbps SR4 connectivity.

40G to 4 x 10G Connectivity

H3C specifies that supported QSFP-40G-SR4-MM850 modules can operate in a port-splitting configuration, allowing a compatible 40G QSFP+ port to connect to four 10G SFP+ ports. The connected modules must have matching specifications, including wavelength and fiber type. :contentReference[oaicite:2]{index=2}

Technical Specifications

Applications

• 40GbE data center networks
• Enterprise network aggregation
• Switch-to-switch connectivity
• High-speed server networking
• Short-distance data center links
• 40G QSFP+ to 4 x 10G SFP+ connectivity

Compatibility

The H3C QSFP-40G-SR4-MM850 is designed for compatible H3C equipment supporting QSFP+ optical transceiver modules. H3C compatibility documentation lists the QSFP-40G-SR4-MM850 for supported QSFP+ interfaces across its networking platforms. :contentReference[oaicite:3]{index=3}

Before installation, verify the exact H3C device, QSFP+ interface, supported transceiver list, and multimode fiber specifications. The optical characteristics of the connected transceiver and fiber infrastructure should match the requirements of the link.

Buy H3C QSFP-40G-SR4-MM850 in Bangladesh

Datacom Technologies (BD) supplies H3C optical transceivers, enterprise networking equipment, fiber connectivity products, and data center hardware in Bangladesh. The H3C QSFP-40G-SR4-MM850 is suitable for compatible 40Gbps networking environments requiring short-reach multimode fiber connectivity.

For corporate and project requirements, customers can contact Datacom Technologies (BD) for product selection assistance, technical consultation, and professional networking equipment supply.