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header-product SFP28 network transceiver BLUEOPTICS S4J91A-BO single-port 25Gbps, SFP28 form factor, compatible with HPE S4J91A
67.49 €

SFP28 network transceiver BLUEOPTICS S4J91A-BO single-port 25Gbps, SFP28 form factor, compatible with HPE S4J91A

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SFP28 network transceiver BLUEOPTICS S4J91A-BO single-port 25Gbps, SFP28 form factor, compatible with HPE S4J91A

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SFP28 network transceiver BLUEOPTICS S4J91A-BO single-port 25Gbps, SFP28 form factor, compatible with HPE S4J91A

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Short description

BLUEOPTICS S4J91A-BO is a compatible SFP28 network transceiver for 25Gbps Ethernet links. The single-port SFP28 module provides a 25Gbps uplink for switches, servers or network appliances and fits standard SFP28 ports. It is intended for expanding or replacing 25GbE interfaces in data centers and enterprise networks. The module supports plug-and-play installation for fast deployment of high-speed connections.
Available for order: 717 pcs.
Warranty: 2 Years
SKU: 11646547
Manufacturer: BlueOptics
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Cheapest delivery:

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Pick-up points

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Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
07.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
12.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.00 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
12.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Product information

Description

BLUEOPTICS S4J91A-BO is a single-port SFP28 network transceiver designed for 25Gbps Ethernet links. The module fits into standard SFP28 ports and provides a 25Gbps uplink for switches, servers and network appliances. It is a compatible alternative for HPE S4J91A and is intended for expanding or replacing 25GbE interfaces in data center and enterprise environments. The transceiver supports plug-and-play installation to enable fast deployment of high-speed connections.

Advantages

This SFP28 module offers a compact form factor and low-power operation while delivering 25Gbps line-rate performance. Compatibility with common SFP28 slot designs ensures easy interchangeability when upgrading or replacing existing 25GbE interfaces. The plug-and-play capability simplifies installation without requiring additional configuration on supported devices. The module is suitable for high-density deployments due to its small footprint.

Suitable for

  • Expanding 25GbE uplinks on Ethernet switches and routers
  • High-speed server connections in rack and blade systems
  • Interconnecting network appliances and storage systems
  • Replacing existing SFP28 transceivers in data center infrastructures

Key specifications

  • Interface type: SFP28 form factor, single-port
  • Data rate: 25 Gbps per port
  • Application: Short-range 25 Gigabit Ethernet links (depends on fiber/copper variant)
  • Form factor compatibility: standard SFP28 ports used in switches, servers and network devices
  • Installation: hot-pluggable plug-and-play module
  • Power consumption: low-power SFP28 class (typical values depend on device)

How to use

Insert the BLUEOPTICS S4J91A-BO transceiver into a compatible SFP28 port on your switch, server or appliance until it clicks into place. Connect the appropriate fiber or copper cable to the module according to the chosen media type and route the cable to the remote device. The device should detect the transceiver automatically; verify the link status and data rate on the host device or management interface. To remove the module, depress the release mechanism on the port and gently pull the transceiver out.

Usage recommendations

Ensure the host device firmware and optics compatibility list support third-party SFP28 modules. Use the correct fiber type, cabling and transceiver variant for your required link distance and environment. Handle the transceiver by the housing, keep connectors capped when not in use, and follow electrostatic discharge (ESD) precautions during installation and removal.

Description

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Customer reviews

Customer questions

FAQ

How much does the BLUEOPTICS S4J91A-BO SFP28 25Gbps transceiver cost, and is it available for purchase?

The price is 67.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 717 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 07.08.2026 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.
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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.