# Networking Cable EFB Elektronik K5528BL.0.5 Blue 0.5m Cat8.1 S/FTP

**URL:** https://aio.lv/en/product--efb-elektronik-k5528bl05--3141405
**Data updated:** 2026-01-05 20:32 (EET)
**Category:** Network Cables
**Manufacturer:** EFB Elektronik
**Manufacturer code:** K5528BL.0,5
**EAN:** 4049759215200
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 9.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-k5528bl05--3141405

## 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.0.5 is a 0.5m networking cable that meets Cat8.1 standards, providing exceptional data transfer rates of up to 40000 Mbit/s. It features S/FTP shielding for enhanced performance and reduced interference, with RJ-45 connectors on both ends for easy connectivity. The blue color adds a modern touch to your setup.

## Long description

The EFB Elektronik K5528BL.0.5 is a 0.5 m Cat8.1 S/FTP patch cable with RJ45 connectors on both ends, designed for high-speed Ethernet links. It supports data rates up to 40000 Mbit/s and is built for applications requiring high bandwidth and reduced electromagnetic interference. The cable is blue and intended for short-distance, high-frequency network connections.
Advantages
The Cat8.1 construction with S/FTP shielding provides improved protection against crosstalk and external interference while supporting frequencies up to 2000 MHz. With RJ45 terminations it is compatible with standard 25GBASE-T and 40GBASE-T equipment where a maximum link length of 30 m is acceptable. Its 0.5 m length makes it suitable for patching in racks and connecting adjacent devices with minimal excess cable.
Suitable for
25GBASE-T links using RJ45
40GBASE-T short-reach connections
High-density rack patching and adjacent device connections
Environments requiring S/FTP shielding to reduce interference
Key specifications
Standard: Cat8.1
Length: 0.5 m
Bandwidth/frequency: up to 2000 MHz
Max supported data rate: up to 40000 Mbit/s
Shielding: S/FTP (shielded foil with braided overall)
Connectors: RJ45 — both ends
Maximum recommended transmission distance: 30 m (typical for Cat8.1)
Color: Blue
Brand / MPN / EAN: EFB Elektronik / K5528BL.0,5 / 4049759215200
How to use
Plug each RJ45 connector into the corresponding network ports on your devices or patch panel. Use the 0.5 m cable for short connections inside racks or between adjacent equipment. Ensure connectors are fully seated to maintain contact integrity. For longer links or different installation requirements, select an appropriate cable length or category that meets distance and performance needs.
Usage recommendations
Use this Cat8.1 S/FTP 0.5 m cable for short, high-speed RJ45 connections such as 25GBASE-T or 40GBASE-T patching within racks; avoid using it for runs exceeding the recommended 30 m maximum distance for Cat8.1 to ensure specified performance.

## Specifications

### Features

| Feature | Value |
|---|---|
| Cable length | 0.5 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 | 40 Gigabit Ethernet, 2.5 Gigabit Ethernet |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

### Other features

| Feature | Value |
|---|---|
| Impedance | 100 Ω |

### Weight & dimensions

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

### Logistics data

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

### Packaging content

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

## FAQ

### How much does the Networking Cable EFB Elektronik K5528BL.0.5 cost, and is it available for purchase?

The price is 11.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1464 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.0.5?

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/3141405/64204193_large.webp