{{ totalProductsCount }}

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

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

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

QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 1
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 2
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 3
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 4
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 5
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 6
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 7
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 8
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 1
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 2
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 3
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 4
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 5
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 6
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 7
QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-BO Photo 8
Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

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

{{email}}
You keep track of price changes

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

{{email}}
{{selectedOffer && selectedOffer.price | formatAmount}}

Short description

The BlueOptics QSFP-40G-ESR4-AT-BO is a fiber optic transceiver module designed for high-speed data transfer at 40 Mbit/s. It operates at a wavelength of 850 nm and has a mean time between failures (MTBF) of 1,000,000 hours, ensuring reliability. Weighing 40 g, it is compact and suitable for various networking applications.
Available for order: 86 pcs.
Warranty: 2 Years
SKU: 6185033
Manufacturer: BlueOptics
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
25.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.08.2026 {{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
28.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
payment
Payment Methods:
Bank transfer
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

The BlueOptics QSFP-40G-ESR4-AT-BO is a compact QSFP optical transceiver module designed for 40 Mbit/s multimode fiber links. It transmits and receives at an 850 nm wavelength, uses an MPO/MTP connector for parallel fiber interfaces and supports multimode distances up to 300 m. With a lightweight housing of approximately 40 g and a rated MTBF of 1,000,000 hours, the module is intended for deployment in high-density network equipment that accepts QSFP form-factor optics.

Advantages

The module follows MSA QSFP mechanical and electrical specifications to ensure interoperability with compatible hardware platforms. It provides bidirectional 850 nm optical transmission over multimode fiber using an MPO/MTP connector, enabling parallel 40 Gigabit Ethernet links. The transceiver includes support for digital diagnostic monitoring (DDM/DOM) when the host hardware supports that interface, and is built with components selected for long operational lifetime and compliance with common industrial standards such as CE and RoHS.

Suitable for

  • 40 Gigabit Ethernet multimode fiber links up to 300 m
  • High-density switch and router QSFP ports
  • Data center aggregation and server uplinks
  • Storage systems and SAN interconnects that accept QSFP optics

Key specifications

  • Maximum data transfer rate: 40 Mbit/s
  • Wavelength (Tx/Rx): 850 nm
  • Maximum transfer distance on multimode fiber: 300 m
  • Fiber connector type: MTP/MPO
  • Interface type: 40 Gigabit Ethernet (QSFP form factor)
  • Weight: 0.04 kg
  • Mean time between failures (MTBF): 1,000,000 hours

How to use

Install the transceiver into a compatible QSFP port on your switch, router or storage appliance following the host vendor’s hot-swap and anti-static procedures. Connect an MPO/MTP multimode fiber patch cable between this transceiver and the corresponding MPO/MTP connector on the remote transceiver or patch panel. Verify link status and speed through the host device management interface. If DDM/DOM features are required, confirm that the host hardware supports and exposes digital diagnostics to monitor voltage, temperature, transmit/receive power and laser bias current.

Usage recommendations

Use high-quality multimode MPO/MTP patch cords and ensure fiber end-face cleanliness to achieve the specified range and optical performance. Match cable type (OM3/OM4) and patching infrastructure to your required distance and loss budget. When replacing or upgrading optics, consult the host vendor’s compatibility documentation and, if available, request a sample to validate interoperability in your environment.

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.
MTP/MPO
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.
MTP/MPO

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
Tx 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

Machine translation. Load original

Similar products

{{product.title}} Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}
Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}

Customer reviews

Customer questions

FAQ

How much does the QSFP Transceiver BlueOptics QSFP-40G-ESR4-AT-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 25.08.2026 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.
warranty
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.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
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.