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header-product Copper transceiver module BlueOptics 378929-B21-BO 1250 Mbit/s SFP
35.99 €

Copper transceiver module BlueOptics 378929-B21-BO 1250 Mbit/s SFP

Copper transceiver module BlueOptics 378929-B21-BO Photo 1
Copper transceiver module BlueOptics 378929-B21-BO Photo 2
Copper transceiver module BlueOptics 378929-B21-BO Photo 3
Copper transceiver module BlueOptics 378929-B21-BO Photo 4
Copper transceiver module BlueOptics 378929-B21-BO Photo 5
Copper transceiver module BlueOptics 378929-B21-BO Photo 6
Copper transceiver module BlueOptics 378929-B21-BO Photo 7
Copper transceiver module BlueOptics 378929-B21-BO Photo 1
Copper transceiver module BlueOptics 378929-B21-BO Photo 2
Copper transceiver module BlueOptics 378929-B21-BO Photo 3
Copper transceiver module BlueOptics 378929-B21-BO Photo 4
Copper transceiver module BlueOptics 378929-B21-BO Photo 5
Copper transceiver module BlueOptics 378929-B21-BO Photo 6
Copper transceiver module BlueOptics 378929-B21-BO Photo 7
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Short description

The BlueOptics 378929-B21-BO is a Copper SFP transceiver module with a maximum data transfer rate of 1250 Mbit/s. It operates at a wavelength of 850 nm and is designed for reliable network connectivity. The module is lightweight at 20 g and comes in a grey color. It is suitable for various networking applications requiring efficient data transmission.
Available for order: 1025 pcs.
Warranty: 2 Years
SKU: 4472600
Manufacturer: BlueOptics
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
23.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.02 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
28.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Product information

Description

The BlueOptics 378929-B21-BO Copper transceiver module is an SFP form-factor network transceiver designed for 1250 Mbit/s data links. It provides a compact, low-weight (20 g) solution in grey housing for standard SFP interfaces and supports short-range multimode connections using an 850 nm optical wavelength. The module is compatible with devices that accept SFP 1000Base-SX style transceivers and is intended for reliable network connectivity in switches, routers and other network hardware.

Advantages

The module supports a 1250 Mbit/s maximum data transfer rate and fits standard SFP slots, delivering a straightforward plug-and-play option for equipment that accepts 1000Base-SX transceivers. Its compact size and light weight simplify installation and reduce space usage in dense patch panels or chassis. Manufactured to MSA-compatible mechanical and electrical specifications, the transceiver provides predictable interoperability with compatible network hardware and consistent optical performance at the specified 850 nm wavelength.

Suitable for

  • Upgrading or replacing SFP ports in switches and routers that support 1000Base-SX transceivers
  • Multimode fiber links for LAN and campus networks
  • Short-range Ethernet, Fibre Channel over Ethernet or SDH/SONET applications up to supported link distances
  • Environments requiring compact, hot-pluggable transceivers for service and maintenance

Key specifications

  • Form factor: SFP (Small Form-factor Pluggable)
  • Maximum data transfer rate: 1250 Mbit/s
  • Operating wavelength: 850 nm
  • Product colour: Grey
  • Weight: 0.02 kg
  • Connector type: LC duplex (for multimode optical connections)

How to use

Install the transceiver into a compatible SFP slot on the network device while the device is powered according to the vendor instructions for hot-pluggable modules. Connect the LC duplex multimode patch cable to the transceiver’s optical interface and the corresponding port on the remote device, ensuring proper fiber polarity. Verify link status via the host device management interface and confirm that the host supports 1000Base-SX/1250 Mbit/s transceivers and, if required, Digital Diagnostics Monitoring (DDM)/DOM features for optical parameter readouts.

Usage recommendations

Use multimode fiber patch cords and appropriate LC duplex connections for optimal range and signal quality. Ensure the host device officially supports SFP 1000Base-SX modules and enable any required firmware settings for third-party transceivers. Store and handle the transceiver in a clean, electrostatically safe environment and avoid exposing optical interfaces to dust or contaminants.

Specifications

Interface type:
SFP
Maximum data transfer rate:
1250 Mbit/s
Weight:
0.02 kg
Product colour:
Grey
All features

Performance

Interface type:
SFP
Maximum data transfer rate:
1250 Mbit/s
Fiber ethernet cabling technology:
1000BASE
Duplex system:
Full
Wavelength:
850 nm
Fiber optic connector:
LC
Maximum transfer distance:
550 m
Multi-mode fiber (MMF) supported:
Yes
Single-mode fiber (SMF) supported:
No

Network

SFP transceiver type:
Copper

Weight & dimensions

Weight:
0.02 kg

Packaging content

Quantity per pack:
1 pc(s)

Packaging data

Package weight:
30 g

Operational conditions

Operating temperature (T-T):
0 - 70

Features

Product colour:
Grey

Description

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Customer reviews

Customer questions

FAQ

How much does the Copper transceiver module BlueOptics 378929-B21-BO cost, and is it available for purchase?

The price is 35.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1025 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 23.07.2026 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. 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: interface type, maximum data transfer rate, weight, 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.
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.
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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.