Tanzania Fiber Optics

fiber optic products manufacturing since 1995

Cisco QSFP-40G-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m DOM MTP/MPO-12 MMF Optical Transceiver Module

40G QSFP+ SR4 transceiver

Four lanes of 10.3125G over one MPO-12 connector: the SR4 formula that built the 40G generation, implemented here with full Cisco QSFP-40G-SR4 compatibility.

An 850nm VCSEL array and matching PIN receiver sit behind the 12-fiber MPO interface, while digital diagnostics over I2C report per-lane optical power, temperature and voltage in real time.

40G QSFP+ SR4 Features

  • Hot-pluggable QSFP+ package
  • Low power for dense chassis
  • Coded for Cisco QSFP-40G-SR4
  • Traffic-tested on switch platforms
  • Commercial 0-70C operating range
  • Custom vendor coding available

Typical Applications

  • 4x10G breakout to servers
  • High-performance computing fabrics
  • Data center inter-rack connections
  • Enterprise core networking

Cisco 40G Transceiver Models

Compare related modules by optical standard, reach and host part number rather than by form factor alone. Each linked reference has its own compatibility and ordering details.

QSFP-40G-SR4 | 150m on OM4 / 100m on OM3 ONS-XC-10G-SR-MM | 300m over OM3 MMF SFP-10G-SR | 300m on OM3 / 400m on OM4 SFP-10G-SR-I | 300m on OM3 / 400m on OM4 XFP-10G-MM-SR | 300m over OM3 MMF QSFP-40G-ER4 | 40km QSFP-4X10G-LR-S | 10km QSFP-LR4-40G-I | 10km QSFP-SR4-40G-I | 150m on OM4 / 100m on OM3 QSFP-ZR4-40G | 80km QSFP-40G-CSR4 | 400m on OM4 QSFP-40G-LR4-20 | 20km QSFP-40G-PLRL4 | 2km QSFP-40G-SR-BD | 300m on OM3 / 400m on OM4 / 500m on OM5 QSFP-40G-SR4-S | 150m on OM4 / 100m on OM3 QSFP-40G-UNIV | 150m on OM3 / 2km on SMF QSFP-40GE-LR4 | 10km WSP-Q40GLR4L | 2km

Compatible Brands and OEM Part Numbers

Equivalent hardware references are linked where verified. Select the identity expected by the intended host; the same optical standard does not remove brand-specific compatibility requirements.

CiscoQSFP-40G-SR4

Tanzania Fiber Optics delivers 40G QSFP+ SR4 to Dar es Salaam, Dodoma, Mwanza, Arusha and telecom projects across East Africa.

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Tanzania Fiber Optics

China factory:ZYT Industrial Area,Shenzhen.
Tanzania Office:Ilala,Lumumba Str,
Dar es Salaam
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