40G QSFP+

40G QSFP+ ESR4 Transceiver QSFP-40G-ESR4

Name: 40G QSFP+ ESR4 Transceiver QSFP-40G-ESR4
Brand: Fibertrixa
SKU: QSFP-40G-ESR4
Availability: InStock

40GBASE-eSR4 · 850nm · Multimode (MMF) · MPO · 300m

Compatible with major switch brands — share your equipment model to confirm coding before ordering. 3-year warranty included.

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Module overview

Hot-pluggable QSFP+ MSA form factor
DDM digital diagnostics for TX/RX monitoring
MPO optical interface for parallel fiber links
3-year warranty · free technical support
Coding confirmed against your switch model

The 40GBASE-eSR4 QSFP+ transceiver delivers 40 Gbps over multimode fiber (MMF) through an MPO interface, up to 300 m. It is hot-pluggable, QSFP+ MSA-compliant, and supports DDM digital diagnostics.

Typical deployments

40G QSFP+ remains a cost-effective aggregation layer: ToR-to-spine uplinks, 40G server adapters and legacy 40G switch ports. SR4 and eSR4 use MPO ribbon fiber at 100–300 m; IR4, LR4 and ER4 use LC duplex single-mode up to 40 km.

Before you order

MPO links are polarity-sensitive: confirm the MPO polarity and fiber count match your patch panel before installation, and clean both end faces. Share your switch model and port type so we confirm the coding for your equipment; every module ships with a 3-year warranty and free technical support.

Specifications

Model / Part Number	QSFP-40G-ESR4
Ethernet Standard	40GBASE-eSR4
Data Rate	40G
Wavelength	850 nm
Fiber Type	Multimode (MMF)
Connector	MPO
Max Reach	300m
Form Factor	QSFP+
DDM support	Yes