Arista Compatible Transceivers

Arista QSFP-40G-ER4 Compatible QSFP+ Transceiver

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Arista QSFP-40G-ER4 Compatible QSFP+ Transceiver – 40GBASE-ER4 Optical Module (SMF, 40km)

Product Overview

The Arista QSFP-40G-ER4 compatible module is a high-performance 40G QSFP+ optical transceiver for long-range links over single-mode fiber.

Programmed and tested for Arista equipment, it delivers stable 40G connectivity at a lower cost than the OEM module.

Key Features of Arista QSFP-40G-ER4

Fully Arista Compatible: Programmed and tested for Arista equipment.

40G QSFP+ High-Speed: Supports data rates up to 40 Gbit/s (40GBASE-ER4).

Long-Reach (ER4) Connectivity: Up to 40 km over single-mode fiber.

Full DDM Support: Real-time monitoring of optical power, temperature and voltage.

Hot-Pluggable QSFP+ Form Factor: Easy installation without network interruption.

1310 nm Single-Mode Operation: Optimized for long-reach single-mode fiber networks.

Technical Specifications

Parameter	Specification
Model	Arista QSFP-40G-ER4 Compatible
Form Factor	QSFP+
Data Rate	40Gbps (4 × 10Gbps)
Wavelength	LAN-WDM (₁270–1330nm)
Fiber Type	Single-Mode Fiber (SMF)
Max Distance	40km
Connector	LC Duplex
Transmitter Type	DFB Laser (WDM)
Receiver Type	PIN Photodiode
Lane Configuration	4 Tx / 4 Rx
Output Power	-7 ~ +2.3 dBm
Receiver Sensitivity	≤ -11.5 dBm
Power Consumption	< 3.5W
Operating Temperature	0°C to 70°C (Commercial)
Storage Temperature	-40°C to 85°C
Protocols Supported	IEEE 802.3ba, QSFP+ MSA
Digital Diagnostics	Yes (DDM/DOM Supported)
Compatibility	Arista 7060X, 7280R, 7388 and 7800R series switches and other Arista platforms

Why Choose a Compatible Arista Module

Guaranteed Compatibility: Programmed and tested for Arista equipment, without the OEM price.

Full Feature Support: DDM monitoring and full functionality on Arista systems.

Tested Reliability: Each module is tested for stable performance before shipment.

Cost-Effective for Production: A dependable, lower-cost choice for mission-critical networks.

High-Value Application Scenarios

Data Center Interconnects

Links data centers over single-mode fiber up to 40 km, providing high-density 40G connectivity for long-reach interconnects.

Enterprise Access and Aggregation

Aggregates enterprise traffic onto 40G links, connecting switches and servers over single-mode fiber.

Campus Networks

Connects campus buildings over single-mode fiber up to 40 km, supporting high-speed 40G access and aggregation.

High-Density 40G Deployments

Supports dense 40G deployments where QSFP+ ports multiply bandwidth in data center and enterprise networks.

Compatibility

This compatible module is programmed and tested for Arista equipment that specifies the QSFP-40G-ER4, including Arista 7060X, 7280R, 7388 and 7800R series switches and other Arista platforms.

FAQ

Is this QSFP-40G-ER4 module compatible with Arista equipment?

Yes. This module is programmed and tested for Arista equipment that specifies the QSFP-40G-ER4, and it delivers stable 40G connectivity at a lower cost than the OEM module.

What distance does this module support?

This module supports links up to 40 km over single-mode fiber.

Which Arista systems is it compatible with?

This module is programmed and tested for Arista 7060X, 7280R, 7388 and 7800R series switches, and it also works in other Arista platforms that accept QSFP+ optics.

Does it support DDM monitoring?

Yes. This module supports DDM monitoring of optical power, temperature and voltage.

🚀 Get a Quote for Your 40G Deployment

Order the Arista QSFP-40G-ER4 compatible module from CSW Optics. Send us your required quantity and deployment details.