# SFP copper transceiver CBO SFP-3841 1 Gbps for Ethernet over twisted pair

**URL:** https://aio.lv/en/product--blueoptics-sfp-3841-bo--4468798
**Data updated:** 2026-02-25 16:33 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP-3841-BO
**EAN:** 4063232632827
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 62.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 51.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp-3841-bo--4468798

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

CBO SFP-3841 is a 1 Gbps copper SFP transceiver designed for use in compatible networking equipment with SFP slots. It provides a 1 Gigabit Ethernet interface over copper twisted-pair cabling, enabling short-reach device interconnects and network uplinks. Suitable for switches, routers and media converters where a compact SFP form factor and copper connectivity are required. Offers straightforward installation and interoperability with standard SFP ports for reliable data transmission in office and data center environments.

## Long description

CBO SFP-3841 is a 1 Gbps copper SFP transceiver that provides a Gigabit Ethernet interface over standard twisted-pair copper cabling. Designed for insertion into compatible SFP ports, the module enables short-reach device interconnects, uplinks and link extensions in network switches, routers and media converters without requiring a fixed RJ45 port on the host device. The compact SFP form factor preserves port density while delivering a familiar copper connection for Ethernet over CAT5e/CAT6 type cabling.
Advantages
The transceiver supports 1 Gbps data rates and is compatible with standard SFP cages, offering straightforward hot-pluggable installation and easy replacement. Its copper interface eliminates the need for fiber patching on short links and simplifies wiring in office and data center racks. The small form factor conserves space on chassis-based equipment while providing reliable electrical Ethernet signaling and interoperability with devices that accept SFP copper modules.
Suitable for
 Short-reach uplinks between switches and routers over copper cabling
 Device-to-device links in wiring closets and server rooms
 Media converters and network appliances requiring a 1 Gbps copper SFP
 Environments where port density and modular copper connectivity are needed
Key specifications
 Interface: 1000BASE-T over twisted-pair copper
 Data rate: 1 Gbps (full duplex)
 Form factor: SFP (Small Form-factor Pluggable)
 Cabling: Category 5e / Category 6 copper cabling recommended for short-reach links
 Connector: RJ45 electrical interface on the module
 Operation: Hot-pluggable with standard SFP ports
How to use
Install the module by inserting it into an available SFP port on a compatible switch, router or media converter until it latches securely. Connect a standard copper Ethernet cable to the module's RJ45 interface and the remote device. The link should negotiate to 1 Gbps full duplex automatically when both ends support the same speed and autonegotiation. Remove the module by pressing the release mechanism on the host port and pulling the module straight out when required.
Usage recommendations
Use certified Category 5e or Category 6 cabling for reliable 1 Gbps performance and keep copper cable runs within standard Ethernet distance limits for 1000BASE-T. Confirm host device compatibility with copper SFP modules and verify link settings in the network equipment to ensure correct speed and duplex. Avoid installing or removing the module while exposed to strong electrical interference or when physically stressed.

## FAQ

### How much does the CBO SFP-3841 copper SFP transceiver 1 Gbps cost, and is it available for purchase?

The price is 62.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 975 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4468798/59852375_large.webp