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

40G QSFP+ SR4 optical transceiver

The 40GBASE-SR4 QSFP+ module remains the most widely deployed 40G optic in data centers. Four 10G lanes travel over an MPO-12 multimode trunk for up to 150 meters on OM4 fiber, and the module interoperates with every standards-based 40GBASE-SR4 interface on the market.

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 supply voltage in real time. The module complies with the QSFP+ MSA and IEEE 802.3ba 40GBASE-SR4, and supports breakout to four 10GBASE-SR links when used with MPO to LC harness cables. It is coded for Cisco QSFP-40G-SR4 and tested on major platforms before dispatch.

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
 

40G QSFP+ SR4 Features

  • Four 10.3125Gbps lanes over MPO-12 multimode interface
  • Up to 100m on OM3 and 150m on OM4 fiber
  • 850nm VCSEL transmitter with per-lane DOM monitoring
  • QSFP+ MSA and IEEE 802.3ba 40GBASE-SR4 compliant
  • Supports 4x10GBASE-SR breakout with harness cables
  • Hot-pluggable with low power for dense switch chassis

Typical Applications

  • 40G aggregation and spine links in data centers
  • Cisco Nexus and Catalyst 40G uplinks
  • 4x10G breakout to servers and storage
  • High-performance computing interconnects

These 40G QSFP products are supplied with project support from our UAE office and production coordination from our Shenzhen factory. For datasheets, compatibility coding and lead-time confirmation, please use the contact page on this website.


UAE Fiber Optics

UAE office: Abu Dhabi,Al khaleej Al Arabi
Factory add: ZYT industrial area, Shiyan, Baoan district, Shenzhen, China 518000

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