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header-product QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO 40 Mbit/s 850 nm
119.49 €

QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO 40 Mbit/s 850 nm

QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 1
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 2
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 3
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 4
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 5
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 6
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 7
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 8
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 1
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 2
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 3
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 4
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 5
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 6
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 7
QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO Photo 8
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QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO 40 Mbit/s 850 nm

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Short description

The BlueOptics QSFP-40G-ESR4-CO-BO is a fiber optic transceiver module designed for high-speed data transfer. It supports a maximum data rate of 40 Mbit/s and operates at a wavelength of 850 nm. The metal housing ensures durability, while the MTBF of 1,000,000 hours indicates reliability. Weighing only 40 g, it is lightweight and easy to integrate into various networking applications.
Available for order: 86 pcs.
Warranty: 2 Years
SKU: 6185026
Manufacturer: BlueOptics
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
26.08.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
31.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.04 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
31.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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Product information

Description

The BlueOptics QSFP-40G-ESR4-CO-BO is a QSFP transceiver module for 40 Gigabit Ethernet applications using multimode fiber. It operates at a wavelength of 850 nm, supports a maximum data rate of 40 Mbit/s and a maximum transmission distance of up to 300 m over suitable multimode fiber. The module is housed in metal for mechanical durability and has an MTBF of 1,000,000 hours. It uses an MPO/MTP fiber connector and weighs approximately 40 g, making it compact and straightforward to install in compatible QSFP ports.

Advantages

The module conforms to QSFP MSA specifications and is designed for interoperability with hardware platforms that support 40GBASE-ESR4 transceivers. Metal housing provides mechanical protection and thermal stability while lightweight construction simplifies handling and installation. Built-in digital diagnostics (DDM/DOM) allow real-time monitoring of supply voltage, laser bias current, optical output and input power, and temperature when supported by the host hardware. The module is suitable for high-availability environments thanks to component selection and an extended MTBF.

Suitable for

  • 40 Gigabit Ethernet links in data center switches and routers
  • High-speed server interconnects and storage area networks
  • Short-reach multimode fiber links up to 300 m
  • Environments requiring remote optical diagnostics and monitoring

Key specifications

  • Form factor: QSFP
  • Data rate: up to 40 Mbit/s
  • Wavelength: 850 nm
  • Maximum reach over multimode fiber: 300 m
  • Connector type: MPO / MTP
  • Interface: 40 Gigabit Ethernet
  • Housing: metal
  • Weight: approx. 0.04 kg
  • Digital diagnostics: DDM/DOM (subject to host support)
  • MTBF: 1,000,000 hours

How to use

Install the transceiver into a compatible QSFP port according to the equipment vendor's instructions, ensuring the host device supports 40GBASE-ESR4 modules and the DDM/DOM function if diagnostic data is required. Connect an MPO/MTP multimode fiber patch cord to the transceiver and route the cable to the corresponding port or patch panel. Verify link state and monitor diagnostic parameters through the host system to confirm correct operation. Handle the module by the edges and keep protective caps on the fiber connector when not in use to avoid contamination.

Usage recommendations

Use OM3 or OM4 multimode fiber for optimal reach and performance up to the specified 300 m. Ensure proper cleaning of MPO/MTP connectors before installation and confirm host compatibility with 40GBASE-ESR4 optics and digital monitoring features. For redundancy and high-availability deployments, plan link aggregation or redundant paths and monitor the transceiver's diagnostic parameters regularly.

Specifications

Wavelength: The distance over which a wave repeats itself. The wavelength determines the characteristics of the wave e.g. red light has a different wavelength to blue light.
850 nm
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
300 m
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
40 Mbit/s
Fiber optic connector: This terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. Better connectors lose very little light due to reflection or misalignment of the fibers. In all there have been about 100 types of optic fiber connectors produced.
MPO, MTP
All features
Interface type:
QSFP
Ethernet LAN: An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.
Yes
Number of products included: The number of products that are included in the package.
1 pc(s)
SFP transceiver type:
Fiber optic
Multi-mode fiber (MMF) supported:
Yes

Packaging data

Package weight: Weight of the packaged product.
50 g

Packaging content

Manual:
Yes

Operational conditions

Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 70

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.04 kg

Ports & interfaces

Fiber optic connector: This terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. Better connectors lose very little light due to reflection or misalignment of the fibers. In all there have been about 100 types of optic fiber connectors produced.
MPO, MTP

Features

Housing material: What the casing of the product is made of.
Metal

Performance

Mean time between failures (MTBF): Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
1000000 h
Rx wavelength (max):
850 nm
Wavelength: The distance over which a wave repeats itself. The wavelength determines the characteristics of the wave e.g. red light has a different wavelength to blue light.
850 nm
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
300 m

Network

Ethernet interface type:
40 Gigabit Ethernet
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
40 Mbit/s

Description

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Customer reviews

Customer questions

FAQ

How much does the QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-CO-BO cost, and is it available for purchase?

The price is 119.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 86 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 26.08.2026 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. 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 BlueOptics 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 BlueOptics 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: wavelength, maximum transfer distance, maximum data transfer rate, fiber optic connector, 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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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.