40G QSFP+

40G QSFP+ ER4 Transceiver QSFP-40G-ER4-LC

Name: 40G QSFP+ ER4 Transceiver QSFP-40G-ER4-LC
Brand: Fibertrixa
SKU: QSFP-40G-ER4-LC
Availability: InStock

40GBASE-ER4 · 1310nm · Single-mode (SMF) · Duplex LC · 40km · see note

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
3-year warranty · free technical support
Coding confirmed against your switch model

The 40GBASE-ER4 QSFP+ transceiver delivers 40 Gbps over single-mode fiber (SMF) using 1310 nm with a duplex LC connector, up to 40 km. 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

Confirm your switch port is rated for 40G and uses the same 40GBASE-ER4 interface before installing. Share the switch model to confirm coding; every module ships with a 3-year warranty and free technical support.

Specifications

Model / Part Number	QSFP-40G-ER4-LC
Ethernet Standard	40GBASE-ER4
Standard note	Vendor specification lists 1310 nm. 40GBASE-LR4 and 40GBASE-ER4 normally use four CWDM wavelengths (1271–1331 nm); confirm the datasheet before ordering.
Data Rate	40G
Wavelength	1310 nm
Fiber Type	Single-mode (SMF)
Connector	LC
Max Reach	40km
Form Factor	QSFP+
DDM support	Yes