# Networking Cable EFB Elektronik K5528BL.3 Blue 3m Cat8.1 S/FTP

**URL:** https://aio.lv/en/product--efb-elektronik-k5528bl3--3141410
**Data updated:** 2026-04-19 14:11 (EEST)
**Category:** Network Cables
**Manufacturer:** EFB Elektronik
**Manufacturer code:** K5528BL.3
**EAN:** 4049759215248
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.99 €
**Prices and availability valid until:** 2026-07-18 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-k5528bl3--3141410

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The EFB Elektronik K5528BL.3 is a 3-meter networking cable with Cat8.1 standard and S/FTP shielding, ensuring high-speed data transfer rates of up to 40000 Mbit/s. It features RJ-45 connectors on both ends and is designed for reliable and efficient networking in demanding environments. The blue color adds a modern touch to your setup.

## Long description

The EFB Elektronik K5528BL.3 is a 3 m Cat8.1 S/FTP network patch cable with RJ‑45 connectors at both ends. It supports very high data rates up to 40000 Mbit/s and is designed for short‑reach, high‑frequency Ethernet links such as 25GBASE‑T and 40GBASE‑T over copper. The cable is blue and intended for use where shielded twisted‑pair cabling and low interference are required.
Advantages
This Cat8.1 S/FTP cable provides a frequency range up to 2000 MHz and a maximum recommended transmission length of 30 m for 25GBASE‑T and 40GBASE‑T applications over RJ‑45. The S/FTP shielding (overall foil plus individually shielded pairs) reduces crosstalk and external electromagnetic interference, improving signal integrity in dense or electrically noisy environments. The pre‑terminated RJ‑45 connectors allow plug‑and‑play installation in standard patch panels, switches, and network devices that accept RJ‑45.
Suitable for
 Short‑reach high‑speed links (25GBASE‑T and 40GBASE‑T) within data centers and server rooms
 Backbone or aggregation connections where shielded cabling is required
 Environments with elevated electromagnetic interference where S/FTP shielding is beneficial
When it may not be suitable
This cable is intended for short runs up to around 30 m for the highest data rates; it is not suitable for longer horizontal cabling runs where Cat6A or fiber solutions are preferred. It may also be unnecessary in simple home networks or low‑speed applications where lower‑category, unshielded cables would suffice and cost less.
Key specifications
 Cable length: 3 m
 Category: Cat8.1
 Shielding: S/FTP (overall foil with individually shielded pairs)
 Connectors: RJ‑45 to RJ‑45
 Maximum frequency: up to 2000 MHz
 Maximum recommended transmission distance for 25G/40G: ≈30 m
 Maximum data rate: up to 40000 Mbit/s
How to use
Connect the RJ‑45 plugs to compatible ports on switches, servers, or network interfaces. Route the cable to avoid tight bends and sources of mechanical stress; maintain bend radius recommendations for shielded twisted‑pair cables. Ensure connectors are fully inserted and locked in place. For best performance, use within the specified distance limits and with compatible shielded network equipment and properly grounded infrastructure.
What to consider before purchase
 Required link distance — Cat8.1 is optimized for short runs (around 30 m) at top speeds
 Compatibility with existing equipment — ensure network ports and patch panels support shielded RJ‑45 connections
 Shielding and grounding — S/FTP requires correct grounding practices to realize full EMI protection
 Do you need 25G/40G performance or will lower categories suffice?
Usage recommendations
Use this 3 m Cat8.1 S/FTP patch cable for short, high‑speed connections in data centers or server rooms, keep runs within the specified distance, avoid tight bends, and ensure shielded components are properly grounded for optimal signal integrity.

## Specifications

### Features

| Feature | Value |
|---|---|
| Cable length | 3 m |
| Connector 1 | RJ-45 |
| Connector 2 | RJ-45 |
| Cabling technology | 40GBase-T |
| Product colour | Blue |
| Plug and Play | Yes |
| Data transfer rate | 40000 Mbit/s |
| Jacket material | Low smoke zero halogen (LSZH) |
| Cable standard | Cat8.1 |
| Frequency | 2000 MHz |
| AWG wire size | 24/7 |
| Cable shielding | S/FTP (S-STP) |
| Conductor material | Copper |
| Connector shielding | Yes |
| Ethernet interface type | 2.5 Gigabit Ethernet, 40 Gigabit Ethernet |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

### Weight & dimensions

| Feature | Value |
|---|---|
| Outer diameter | 8 mm |

### Packaging content

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

## FAQ

### How much does the Networking Cable EFB Elektronik K5528BL.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 — 275 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 08.07.2026 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, 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 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, cabling technology, 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.

### Where can I download the instructions for Networking Cable EFB Elektronik K5528BL.3?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3141410/64204194_large.webp