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header-product Network transceiver module Cisco QSFP-40G-LR4-S= QSFP 40 Gbit/s
10,556.49 €

Network transceiver module Cisco QSFP-40G-LR4-S= QSFP 40 Gbit/s

Cisco QSFP-40G-LR4-S= QSFP 40 Gbit/s transceiver Photo 1
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Network transceiver module Cisco QSFP-40G-LR4-S= QSFP 40 Gbit/s

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Network transceiver module Cisco QSFP-40G-LR4-S= QSFP 40 Gbit/s

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Short description

Cisco QSFP-40G-LR4-S= is a QSFP form-factor fiber optic network transceiver supporting up to 40 Gbit/s. Designed for single-module deployment, it follows MSA certification and provides a QSFP interface for high-speed data links in data centers and enterprise networks. Suitable for 40G uplinks, aggregation and switch-to-switch connections.
Available for order: 45 pcs.
Warranty: 2 Years
SKU: 11024358
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
30.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
04.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.84 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
04.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Leasing for legal entities
Leasing for legal entities: from 367.37 euros per month
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Product information

Description

Cisco QSFP-40G-LR4-S= is a QSFP form-factor fiber optic network transceiver that supports up to 40 Gbit/s. The module implements 40GBase-LR4 signaling over four wavelengths and is intended for single-mode fiber links. It provides a QSFP interface with duplex LC connectivity and is suitable for link lengths up to 10 kilometers over standard G.652 single-mode fiber. The device performs internal multiplexing and demultiplexing of the four wavelengths and is designed specifically for 40 Gigabit Ethernet operation.

Advantages

The Cisco QSFP-40G-LR4-S= offers a compact QSFP package that consolidates four 10 Gbit/s channels into a single 40 Gbit/s interface, reducing port density and cabling complexity. It supports long-reach single-mode links up to 10 km with duplex LC connectors and adheres to industry MSA form-factor conventions for interoperability. The module is purpose-built for 40GBase Ethernet, ensuring protocol-compatible signaling and stable data throughput at 40 Gbit/s.

Suitable for

  • 40G uplinks between switches and routers in data centers
  • Aggregation and spine-leaf connections in enterprise networks
  • Switch-to-switch links requiring single-mode fiber reach up to 10 km
  • High-density installations that benefit from QSFP form-factor consolidation

Key specifications

  • Form factor: QSFP
  • Nominal data rate: 40 Gbit/s (four 10 Gbit/s lanes)
  • Optical standard: 40GBase-LR4
  • Fiber type: Single-mode fiber (G.652)
  • Maximum link length: up to 10 km over standard G.652 single-mode fiber
  • Connector type: Duplex LC
  • Wavelength: four multiplexed wavelengths (internal MUX/DEMUX)

How to use

Install the QSFP-40G-LR4-S= into a compatible QSFP port on a switch or router following the host device installation procedure. Connect duplex LC single-mode fiber cables to the module, ensuring correct transmit/receive orientation. Verify that the host interface is configured for 40 Gigabit Ethernet operation and that link settings match on both ends. Monitor link status and optical diagnostics through the host equipment to confirm proper operation.

Usage recommendations

Use high-quality G.652 single-mode duplex LC patch cords and maintain proper fiber handling to preserve optical performance. Verify compatibility with the host platform's supported transceiver list and ensure firmware or software settings permit 40GBase-LR4 operation. For distances near the 10 km limit, test the specific fiber plant for loss and dispersion and consider site attenuation margins when planning links.

Specifications

Interface type:
QSFP
Maximum data transfer rate:
40000 Mbit/s
All features

Performance

Interface type:
QSFP
Maximum data transfer rate:
40000 Mbit/s
Networking standards:
IEEE 802.3ba
Auto MDI/MDI-X:
Yes
Wavelength:
1310 nm
Fiber optic connector:
LC
Maximum transfer distance:
10000 m
Fiber cable diameters supported (core/cladding):
9/125
Single-mode fiber (SMF) supported:
Yes
SFP transceiver standard:
LR

Network

SFP transceiver type:
Fiber optic

Logistics data

Harmonized System (HS) code:
85369010

Operational conditions

Operating relative humidity (H-H):
10 - 80
Storage temperature (T-T):
-40 - 85
Operating temperature (T-T):
0 - 70
Storage relative humidity (H-H):
10 - 85

Certificates

Certification:
MSA

Features

Hot-Plug support:
Yes

Packaging data

Number of products included:
1 pc(s)

Description

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Customer reviews

Customer questions

FAQ

How much does the Cisco QSFP-40G-LR4-S= QSFP 40 Gbit/s transceiver cost, and is it available for purchase?

The price is 10,556.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 45 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 30.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Leasing for legal entities. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Cisco products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Cisco service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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