# Copper SFP Transceiver LevelOne 1.25Gbps 100m RJ45

**URL:** https://aio.lv/en/product--levelone-86196--431078
**Data updated:** 2025-12-29 15:31 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** LEVELONE
**Manufacturer code:** 86196
**EAN:** 4015867154700
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 52.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 43.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--levelone-86196--431078

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

The LevelOne 1.25Gbps Copper SFP Transceiver provides a reliable data transfer rate of 1250 Mbit/s over a distance of up to 100 meters. Designed for SFP interfaces, it operates at an input voltage of 3.3 V and supports a maximum current of 0.375 A. With CE and FCC certifications, this transceiver ensures compliance with international standards. Compact dimensions of 57 mm x 12 mm x 13.7 mm make it easy to integrate into various networking setups.

## Long description

The LevelOne Copper SFP Transceiver (model SFP-3841) converts a 1000BASE-X optical Ethernet port to a 1000BASE-T copper RJ-45 port, enabling up to 1.25 Gbps data transfer over unshielded twisted-pair Category 5 cable for distances up to 100 meters. It is designed for SFP interfaces and has compact dimensions (57 mm x 12 mm x 13.7 mm), an input voltage of 3.3 V and typical power dissipation of about 1.05 W. The module is CE and FCC certified and intended for integration into networking equipment that accepts SFP transceivers.
Advantages
The transceiver supports bi-directional data links up to 1.25 Gbps and is hot-pluggable in an SFP footprint for easy replacement or upgrades. Its fully metallic enclosure reduces electromagnetic interference and the extended operating case temperature range (0 °C to +70 °C) improves reliability in a variety of environments. The compact RJ-45 connector assembly and access to the physical layer IC via a 2-wire serial bus simplify installation and monitoring. Low typical power consumption (1.05 W) minimizes thermal load on the host device.
Suitable for
Converting SFP optical ports to copper Ethernet (1000BASE-T)
Enterprise and data center switches, routers, and media converters with SFP slots
Short-reach copper links up to 100 m using Cat5/5e/6 UTP cable
Key specifications
Model: SFP-3841 (LevelOne)
Interface type: SFP with RJ-45 1000BASE-T
Maximum data transfer rate: 1250 Mbit/s (1.25 Gbps)
Range: up to 100 meters over UTP Category 5 cable
Operating case temperature: 0 °C to +70 °C
Power consumption: typical 1.05 W
Input voltage: 3.3 V
Dimensions: 57 mm x 12 mm x 13.7 mm
Certifications: CE, FCC
How to use
Insert the LevelOne Copper SFP transceiver into an available SFP slot on the host device while the host is powered according to the equipment manual (the module is hot-pluggable). Connect a Cat5/5e/6 unshielded twisted-pair cable to the RJ-45 connector and to the remote Ethernet device. Ensure the host system supports 1000BASE-T operation over an SFP interface or SERDES as required. Use the host device or management software to verify link negotiation and speed; access to the physical layer IC via the 2-wire serial bus enables additional monitoring if supported by the host.
Usage recommendations
Use Category 5 or better UTP cable for runs up to 100 m, maintain proper cable management to avoid excessive bend radius and interference, and verify compatibility with the host SFP slot and firmware. Do not expose the module to conditions outside the specified operating temperature range.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Networking standards | IEEE 802.3ab, IEEE 802.3 |
| Ethernet LAN (RJ-45) ports | 1 |
| Maximum transfer distance | 100 m |

### Network

| Feature | Value |
|---|---|
| SFP transceiver type | Copper |

### Features

| Feature | Value |
|---|---|
| Hot-Plug support | Yes |
| Hot-swap | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Country of origin | China |
| Harmonized System (HS) code | 85369010 |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 95 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |

### Power

| Feature | Value |
|---|---|
| Input voltage | 3.3 |
| Maximum current | 0.375 A |
| Maximum voltage | 4 V |

### Certificates

| Feature | Value |
|---|---|
| Certification | CE, FCC |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 35 g |
| Package depth | 20 mm |
| Package height | 65 mm |
| Package width | 106 mm |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.02 kg |
| Height | 13.7 mm |
| Width | 57 mm |
| Depth | 12 mm |

### Sustainability

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

## FAQ

### How much does the Copper SFP Transceiver LevelOne 1.25Gbps 100m RJ45 cost, and is it available for purchase?

The price is 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 120 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 30.06.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 LEVELONE 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 LEVELONE 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: interface type, maximum data transfer rate, weight, 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/431078/54582977_large.webp