Name: QSFP-40G-UNIV Arista 40G 1310nm SMF LC 40 Gigabit Ethernet Transceiver
Brand: Arista Networks
SKU: QSFP-40G-UNIV
Price: 84.00 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The QSFP-40G-UNIV transceiver delivers 40G data rates over single-mode fiber using a 1310nm wavelength. It’s designed for use in Arista QSFP ports, fitting smoothly into existing setups. This module is a practical choice for networks requiring reliable, long-distance 40 Gigabit connections, often found in data centers and enterprise environments.

General Information
Brand	Arista Networks
Part Number	QSFP-40G-UNIV

Technical Information
Form Factor	QSFP+
Media	SMF
Type	4 x LAN WDM EML
Power Consumption	≤3.5 W (typical ~3.5 W)
Protocols	40GBASE-LR4
Connector	LC Duplex
DOM Support	Yes

Physical Characteristics
Weight	5.00
Condition	Refurbished

Product Description
The QSFP-40G-UNIV transceiver enables 40G data transmission over single-mode fiber, providing reliable high-speed connections for data centers and enterprise networks. It’s commonly used in core and aggregation layers where fast, long-distance communication is required. Built for network engineers and IT professionals, this module fits into QSFP ports on Arista switches, helping ensure straightforward upgrades or expansions of fiber optic networks. Key Features Supports 40 Gigabit Ethernet speeds with QSFP form factor Operates at 1310nm wavelength optimized for single-mode fiber LC duplex connector simplifies fiber connections Compatible across various Arista devices for flexible deployment Designed for distances up to 10km, ideal for campus or data center links This transceiver is typically deployed in data center backbones and high-capacity network paths where low latency and high throughput are essential. Its performance helps maintain smooth data flow and supports scaling network infrastructure as demands grow.

Use Cases
The Arista QSFP-40G-UNIV transceiver is primarily deployed in environments requiring robust 40 Gigabit Ethernet connectivity over single-mode fiber. It is well-suited for data centers, enterprise backbone networks, and service provider infrastructure where long-distance high-speed links are essential for efficient data transport. How It's Used: Connecting core aggregation switches in large data centers to support heavy east-west traffic. Linking enterprise campus networks over campus fiber infrastructure to enable high-throughput applications. Establishing high-capacity connections between storage clusters and compute nodes in virtualization environments. Extending network reach in telco and service provider edge networks requiring reliable 40G transport. Integrating with rack-mounted network equipment in hyperscale cloud deployments to facilitate scalable bandwidth expansion. This transceiver supports the operational efficiency of high-demand network environments by enabling scalable, long-distance 40G links. Its compatibility with Arista QSFP ports ensures minimal deployment friction, allowing IT infrastructure to maintain high performance while adapting to evolving bandwidth needs.

QSFP-40G-UNIV Arista 40G 1310nm SMF LC 40 Gigabit Ethernet Transceiver

Product Overview

General Information

Technical Information

Physical Characteristics

Product Description

Use Cases