# SFP28 Transceiver BlueOptics ESPT251SR1UCL100-BO — LC-Duplex, 25GBASE-SR, Multimode 850nm, 100m, DDM/DOM, 0–70°C

**URL:** https://aio.lv/en/product--blueoptics-espt251sr1ucl100-bo--12218023
**Data updated:** 2026-03-27 13:58 (EET)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** ESPT251SR1UCL100-BO
**EAN:** 4063232350097
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 48.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-espt251sr1ucl100-bo--12218023

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

BlueOptics SFP28 transceiver ESPT251SR1UCL100-BO is a 25GBASE-SR multimode fiber module with LC-duplex interface, operating at 850 nm for up to 100 meters. It supports digital diagnostics (DDM/DOM) and is specified for operating temperatures from 0°C to +70°C. Designed for short‑reach 25 Gigabit Ethernet links in data centers and enterprise networks.

## Long description

BlueOptics SFP28 Transceiver ESPT251SR1UCL100-BO is a 25GBASE-SR multimode fiber module with an LC-duplex interface that operates at a wavelength of 850 nm. The module supports data transmission up to 25 Gbit/s over multimode fiber for distances up to 100 meters and includes digital diagnostics monitoring (DDM/DOM). It is specified for operation in ambient temperatures from 0°C to +70°C, making it suitable for standard data center and enterprise networking environments where short-reach 25 Gigabit Ethernet links are required.
Advantages
The transceiver provides reliable short-reach 25G connectivity with an industry-standard LC-duplex connector and low-power SFP28 form factor. Built-in DDM/DOM enables real-time monitoring of optical and electrical parameters such as optical power and temperature. Compatibility with multimode 850 nm fiber and a 100 m reach simplifies upgrades in existing OM3/OM4 fiber infrastructures. Specified operating temperature range ensures predictable performance within typical server room and rack environments.
Suitable for
 25 Gigabit Ethernet uplinks in data centers
 Top-of-rack and aggregation switches
 Server interconnects and storage networking
 Short-reach links over multimode OM3/OM4 fiber up to 100 m
Key specifications
 Form factor: SFP28 (small form-factor pluggable 28)
 Data rate: 25 Gbit/s
 Protocol: 25GBASE-SR
 Fiber type: Multimode fiber
 Wavelength: 850 nm
 Maximum reach: 100 m (over appropriate multimode fiber)
 Connector: LC-Duplex
 Monitoring: Digital diagnostics (DDM/DOM)
 Operating temperature: 0°C to +70°C
How to use
Install the BlueOptics SFP28 transceiver into an SFP28-compatible port on a switch, router or network interface card following the host device manufacturer’s hot-plug procedures. Connect LC-duplex multimode fiber patch cables (850 nm compliant) to the module ensuring correct polarity. After insertion and link establishment, verify link status and use the host system or supported management tools to view DDM/DOM parameters for optical power, temperature and other diagnostics. If the device does not bring the link up, check fiber type, cable length, connector cleanliness and port configuration.
Usage recommendations
For reliable performance, use OM3 or OM4 multimode fiber and high-quality LC duplex patch cords, maintain clean connector endfaces, and observe the specified 0°C to +70°C operating temperature. Use DDM/DOM readings to monitor link health and plan maintenance or replacement if optical power or temperature values deviate from expected ranges.

## FAQ

### How much does the BlueOptics SFP28 ESPT251SR1UCL100-BO 25GBASE-SR cost, and is it available for purchase?

The price is 58.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4491 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 24.07.2026 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

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