Pakistan Fiber Optics

Fiber Optic Products Manufacturing since 1998

Cisco QSFP-40G-ER4 Compatible 40GBASE-ER4 QSFP+ 1310nm 40km DOM Duplex LC SMF Optical Transceiver Module

40G QSFP+ ER4 transceiver

Our 40G QSFP+ ER4 combines extended reach with transport-grade compliance, coded for Cisco QSFP-40G-ER4 and validated on switching and transport platforms.

Compliant with the QSFP+ MSA, IEEE 802.3bm 40GBASE-ER4 and OTU3 standards, the module multiplexes four lanes onto a duplex LC pair and reports per-channel diagnostics through I2C.

40G QSFP+ ER4 Features

  • IEEE 802.3bm 40GBASE-ER4 compliant
  • OTU3 transport standard support
  • Full per-channel DOM monitoring
  • No external amplifiers required
  • Coded for Cisco QSFP-40G-ER4
  • Traffic-tested before dispatch

Typical Applications

  • Long campus backbone spans
  • Carrier access and aggregation
  • Disaster recovery links
  • Inter-city enterprise 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-ER4 | 40km 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 | 150m on OM4 / 100m on OM3 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-ER4 JuniperQSFPP-40GBASE-ER4 AristaQSFP-40G-ER4 Dell430-4917-40 HPE H3CJL306A Extreme10335 Brocade40G-QSFP-ER4 NVIDIA/Mellanox (Ethernet)MC2210511-ER4 H3CQSFP-40G-ER4-SM1310

Fiber Optic Pakistan provides 40G QSFP+ ER4 to Karachi, Lahore, Islamabad, Faisalabad and fiber network projects nationwide.


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China Factory: Bao'an,Shenzhen
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