# SFP+ Transceiver BlueOptics BO35J856S3D (Y3KJN-BO) — LC-Duplex, 10GBASE-SR, Multimode 850nm, 300m, 0–70°C

**URL:** https://aio.lv/en/product--blueoptics-y3kjn-bo--12011912
**Data updated:** 2026-03-11 20:46 (EET)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** Y3KJN-BO
**EAN:** 4063232348292
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 37.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-y3kjn-bo--12011912

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Compatible Dell BlueOptics SFP+ transceiver model BO35J856S3D (Y3KJN-BO) is a 10GBASE-SR optical module for multimode fiber using an 850 nm wavelength. It features an LC-duplex connector, supports up to 300 meters over multimode fiber and operates between 0°C and +70°C. Designed for high-speed 10 Gbps links in data centers, switches and server uplinks.

## Long description

The BlueOptics BO35J856S3D SFP+ transceiver is a 10GBASE-SR optical module designed for short-range multimode fiber links. It uses an 850 nm wavelength and an LC-duplex connector to deliver 10 Gbps connectivity for data centers, switches, server uplinks and other network equipment that accept SFP+ modules. The module supports link distances up to 300 meters over suitable multimode fiber and is specified to operate in environments from 0°C to 70°C.
Advantages
This SFP+ transceiver ensures 10 Gbps performance over multimode fiber with a compact LC-duplex interface compatible with standard SFP+ ports. Its short-range design provides reliable transmission for server-to-switch and switch-to-switch links within racks or across adjacent equipment rooms. The broad operating temperature range and industry-standard form factor make it suitable for conventional data center and campus networking deployments where predictable optical behavior is required.
Suitable for
 10 Gbps uplinks between servers and switches
 Inter-switch connections within data center racks and adjacent rooms
 Short-range multimode fiber links in campus networks
 Hardware refreshes where SFP+ LC-duplex compatibility is required
Key specifications
 Data rate: 10 Gbps (10GBASE-SR)
 Wavelength: 850 nm
 Connector type: LC duplex
 Fiber type: Multimode fiber (MMF)
 Maximum reach: up to 300 meters over appropriate multimode fiber
 Operating temperature range: 0°C to 70°C
 Form factor: SFP+ (10 Gigabit small form-factor pluggable)
How to use
Install the transceiver into an available SFP+ port on a compatible switch, server or optical transceiver slot, ensuring the host device supports 10GBASE-SR modules. Connect LC-duplex multimode fiber patch cables to the transceiver’s connectors, taking care to match transmit and receive channels. After physical installation, verify link status and configure interface parameters on the host device as required for your network. Follow standard electrostatic discharge (ESD) precautions when handling the module and use dust caps when the transceiver is not connected.
Usage recommendations
Use OM3 or OM4 multimode fiber for reliable performance at longer multimode distances and ensure patch cables are properly rated for 10 Gbps operation. Verify compatibility with the host equipment vendor’s supported transceiver list and test links after installation to confirm expected throughput and signal quality.

## FAQ

### How much does the BlueOptics SFP+ BO35J856S3D (Y3KJN-BO) 10GBASE-SR cost, and is it available for purchase?

The price is 45.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2644 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 27.07.2026 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. 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12011912/67501147_large.webp