# Networking Cable EFB Elektronik K4137BL.3 RJ-45 Cat6a 3m Blue

**URL:** https://aio.lv/en/product--efb-elektronik-k4137bl3--4266855
**Data updated:** 2026-01-13 21:20 (EET)
**Category:** Network Cables
**Manufacturer:** EFB Elektronik
**Manufacturer code:** K4137BL.3
**EAN:** 4049759011338
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.99 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 18.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-k4137bl3--4266855

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.89 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

The EFB Elektronik K4137BL.3 networking cable features a length of 3 meters and is designed with Cat6a standards for high-speed data transfer up to 10000 Mbit/s. It utilizes S/FTP shielding for enhanced protection against interference. The cable is equipped with RJ-45 connectors plated with Nickel/Gold for durability and optimal connectivity. Its blue color adds a modern touch to your setup.

## Long description

The EFB Elektronik K4137BL.3 RJ-45 Cat6a 3m Blue networking cable is a shielded copper patch cable designed for high-speed Ethernet connections. With a 3 meter length and Cat6a specification, it supports data rates up to 10000 Mbit/s and is intended for use in structured cabling, workstations, switches and network devices that require reliable 10 Gigabit performance. The cable uses S/FTP shielding and robust RJ-45 connectors plated with nickel/gold to maintain consistent signal integrity and connection durability. The blue jacket provides easy visual identification within cable bundles and rack environments.
Advantages
The S/FTP shielding minimizes electromagnetic interference and crosstalk, contributing to stable high-frequency transmission across the full Cat6a bandwidth. The RJ-45 connectors feature nickel/gold plating for improved corrosion resistance and reliable mating cycles. At 3 meters, the cable offers a practical balance between reach and signal quality for desktop and patch panel connections. The product’s construction and adherence to Cat6a class parameters enable consistent performance for demanding network applications.
Suitable for
10 Gigabit Ethernet links between switches, patch panels and servers
High-speed workstation connections and desktop networking
Structured cabling in office, data center or home lab environments
Applications requiring reduced EMI and improved signal shielding
Key specifications
Cable category: Cat6a (Class EA)
Data rate support: up to 10000 Mbit/s
Length: 3 m
Shielding: S/FTP (overall foil with individually screened pairs)
Connectors: RJ-45 to RJ-45, plated with nickel/gold
Conductor type: stranded copper (flexible patch cord)
Colour: Blue
How to use
Connect one RJ-45 plug to the network port of your device and the other plug to the switch, router or patch panel. Ensure connectors are fully inserted until they click to secure a proper physical and electrical connection. Route the cable to avoid sharp bends and excessive tension; maintain bend radii recommended for Ethernet patch cords and avoid running the cable parallel to power lines to reduce interference. For permanent installations, use appropriate cable management such as cable ties, trays or patch panels to prevent strain on connectors.
Usage recommendations
For optimal performance at 10 Gbit/s, keep the patch length within recommended standards and avoid combining with lower-category cables in the same signal path. Use the blue colour for consistent identification in mixed-cable environments and periodically check connectors for debris or damage to maintain reliable connections.

## Specifications

### Features

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Connector 1 | RJ-45 |
| Connector 2 | RJ-45 |
| Product colour | Blue |
| Plug and Play | Yes |
| Data transfer rate | 10000 Mbit/s |
| Connector contacts plating | Nickel/Gold |
| Jacket material | Low smoke zero halogen (LSZH) |
| Cable standard | Cat6a |
| Frequency | 500 MHz |
| AWG wire size | 27/7 |
| Cable shielding | S/FTP (S-STP) |
| Conductor material | Copper |
| Connector shielding | Yes |
| Connector 1 gender | Male |
| Connector 2 gender | Male |
| Twisted pair coupling type | 4x2 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Outer diameter | 5.9 mm |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733080 |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Sustainability

| Feature | Value |
|---|---|
| Doesn't contain | Halogen |

## FAQ

### How much does the Networking Cable EFB Elektronik K4137BL.3 cost, and is it available for purchase?

The price is 21.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 07.08.2026 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 EFB Elektronik 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 EFB Elektronik 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: cable length, connector 1, connector 2, 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/4266855/64090321_large.webp