# SFP transceiver module BlueOptics SFP-21BH-BO 1250 Mbit/s

**URL:** https://aio.lv/en/product--blueoptics-sfp-21bh-bo--5245294
**Data updated:** 2026-03-07 15:14 (EET)
**Category:** Network Media Converters
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP-21BH-BO
**EAN:** 4063232271941
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 67.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 56.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp-21bh-bo--5245294

## 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

The BlueOptics SFP-21BH-BO is a fiber optic SFP transceiver module with a maximum data transfer rate of 1250 Mbit/s. It features a metal housing, operates at an input voltage of 3.3 V, and weighs only 3 g. Ideal for high-speed data transmission in networking applications.

## Long description

The BlueOptics SFP-21BH-BO 1250 Mbit/s is a compact fiber optic SFP transceiver module designed for single-mode long‑reach applications. Housed in metal and weighing just 3 g, the module supports a maximum data transfer rate of 1250 Mbit/s and an optical reach up to 40 km. It uses an LC simplex interface and operates at a 3.3 V input supply, providing a standards‑compliant option for Ethernet, Fibre Channel over Ethernet or SDH/SONET links in switches, routers and other network equipment that accept SFP form factor modules.
Advantages
The module offers industry-standard compatibility with MSA-compliant SFP ports and is built with high-quality optical and electronic components to ensure long operational lifetime and stable link performance. Compact metal housing provides mechanical robustness and thermal stability, while the low weight makes it suitable for dense port installations. Support for digital diagnostics (DDM/DOM) enables remote monitoring of supply voltage, laser bias current, optical output and input power plus temperature when the host device supports these features.
Suitable for
 Long-distance single-mode fiber links up to 40 km
 Gigabit Ethernet and 1.25 Gbps optical interfaces
 Interconnection of switches, routers and storage systems
 Deployments that require DDM/DOM monitoring in compatible hardware
Key specifications
 Data rate: up to 1250 Mbit/s
 Maximum optical reach: 40000 m (single-mode)
 Connector type: LC simplex (SFP form factor)
 Operating voltage: 3.3 V
 Housing material and color: metal, silver
 Weight: approximately 0.003 kg
How to use
Insert the SFP transceiver into a compatible SFP slot of the network device until it latches; connect an appropriate single‑mode LC patch cable to the LC simplex port. Ensure the host device supports the intended protocol (Ethernet, Fibre Channel over Ethernet or SDH/SONET) and verify that the device accepts third‑party SFP modules if required. If digital diagnostics are required, confirm that the host supports DDM/DOM and monitor the transceiver parameters through the device management interface. Follow standard electrostatic discharge (ESD) precautions when handling the module.
Usage recommendations
For optimal link performance use single‑mode fiber and quality LC patch cords, observe correct transmit/receive pairing for BX transceivers, and verify wavelength pairing if deploying asymmetric wavelength solutions. Keep firmware and device drivers up to date and verify DDM/DOM readings during commissioning to ensure stable operation.

## Specifications

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum operating temperature | 70 °C |
| Number of products included | 1 pc(s) |
| SFP transceiver type | Fiber optic |
| SFP transceiver standard | BX-D |

### Network

| Feature | Value |
|---|---|
| Maximum data transfer rate | 1250 Mbit/s |
| Fiber ethernet cabling technology | 1000BASE |
| Duplex system | Full |

### Ports & interfaces

| Feature | Value |
|---|---|
| Fiber optic connector | SFP |

### Performance

| Feature | Value |
|---|---|
| Maximum transfer distance | 40000 m |
| Rx wavelength (max) | 1310 nm |
| Tx wavelength (max) | 1490 nm |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.003 kg |

### Power

| Feature | Value |
|---|---|
| Input voltage | 3.3 |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 2 g |

### Features

| Feature | Value |
|---|---|
| Product colour | Silver |
| Housing material | Metal |

## FAQ

### How much does the SFP transceiver BlueOptics SFP-21BH-BO cost, and is it available for purchase?

The price is 67.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 114 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: maximum data transfer rate, maximum transfer distance, weight, fiber optic connector, product colour, 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.

## Image

https://aio.lv/img/cache/product/5245294/54614193_large.webp