# Networking Cable EFB Elektronik K5528BL.5 RJ-45 Cat8.1 5m Blue

**URL:** https://aio.lv/en/product--efb-elektronik-k5528bl5--3141411
**Data updated:** 2026-02-03 08:09 (EET)
**Category:** Network Cables
**Manufacturer:** EFB Elektronik
**Manufacturer code:** K5528BL.5
**EAN:** 4049759215255
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 26.44 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-k5528bl5--3141411

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.99 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The EFB Elektronik K5528BL.5 is a high-performance networking cable with a length of 5 meters. It features RJ-45 connectors and complies with the Cat8.1 standard, providing exceptional data transfer rates of up to 40000 Mbit/s. The S/FTP (S-STP) shielding ensures minimal interference, making it ideal for high-speed networking applications. Its blue color adds a sleek look to your setup.

## Long description

The EFB Elektronik K5528BL.5 is a Cat8.1 RJ-45 patch cable with a length of 5 m, designed for high-speed copper Ethernet connections. It supports 25GBASE-T and 40GBASE-T applications and offers transmission rates up to 40000 Mbit/s with a frequency range up to 2000 MHz and a maximum recommended patching distance of 30 m.
Advantages
The cable uses S/FTP (S-STP) shielding to reduce electromagnetic interference and crosstalk, ensuring stable signal transmission in demanding network environments. Its Cat8.1 specification and RJ-45 connectors provide backward compatibility with lower-speed Ethernet while enabling multi-gigabit and 40GBase-T connections. The 5 m length offers flexibility for rack-to-equipment or workstation connections, and the blue jacket makes cable identification easier in structured cabling.
Suitable for
25GBASE-T and 40GBASE-T rack patching and device interconnects
High-density server rooms and data center top-of-rack connections
Workstation or switch-to-switch links requiring short-run, multi-gigabit copper links
Environments where shielded cables are needed to minimise interference
Key specifications
Standard: Cat8.1
Connectors: RJ-45 to RJ-45
Cabling technology: 40GBase-T, compatible with 25GBase-T
Cable length: 5 m
Maximum data rate: up to 40000 Mbit/s
Frequency range: up to 2000 MHz
Shielding: S/FTP (S-STP)
Colour: Blue
Maximum recommended transmission distance (copper patch): 30 m
How to use
Connect each RJ-45 connector to the corresponding port on network devices such as switches, routers, or network interface cards. Ensure both ports support the intended link speed (25G or 40G) and that connected equipment is configured for the required duplex and negotiation settings. Route the cable to avoid sharp bends and sources of strong electromagnetic interference; secure with appropriate cable management to maintain performance and reduce mechanical strain on connectors.
Usage recommendations
Use this Cat8.1 S/FTP patch cable for short-distance, high-speed copper links in data centers and server rooms. Verify device compatibility for 25G/40GBase-T and keep runs within the recommended 30 m copper limit for reliable performance.

## Specifications

### Features

| Feature | Value |
|---|---|
| Cable length | 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 |

### 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.5 cost, and is it available for purchase?

The price is 31.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 104 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 20.07.2026 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: Cash payment, 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.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/3141411/64089707_large.webp