Pakistan Fiber Optics

Fiber Optic Products Manufacturing since 1998

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

40G QSFP+ SR4 transceiver

Our 40G QSFP+ SR4 combines an 850nm VCSEL array with per-lane diagnostics, giving full visibility into each channel of the parallel 40G link.

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

  • Per-lane DOM monitoring via I2C
  • QSFP+ MSA and IEEE 802.3ba compliant
  • Supports 4x10GBASE-SR breakout
  • Hot-pluggable QSFP+ package
  • Low power for dense chassis
  • Coded for Cisco QSFP-40G-SR4

Typical Applications

  • Cisco Nexus 40G uplinks
  • 4x10G breakout to servers
  • High-performance computing fabrics
  • Data center inter-rack connections

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-CSR4 | 400m on OM4 QSFP-40G-ER4 | 40km 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 QSFP-4X10G-LR-S | 10km QSFP-LR4-40G-I | 10km QSFP-SR4-40G-I | 150m on OM4 / 100m on OM3 QSFP-ZR4-40G | 80km 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

Fiber Optic Pakistan provides 40G QSFP+ SR4 to Karachi, Lahore, Islamabad, Faisalabad and fiber network projects nationwide.


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