# Network Cable BlueOptics EB4J DAC SFP28 SC272701Q0.5M30 EB4J-BL BlueLAN

**URL:** https://aio.lv/en/product--blueoptics-eb4j-bl--10967019
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** EB4J-BL
**EAN:** 4063232331263
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 66.49 €
**Prices and availability valid until:** 2026-08-29 23:59
**Price without VAT (21%):** 54.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-eb4j-bl--10967019

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.08.2026 | free |
| Pickup points | 01.09.2026 | 1.79 EUR |
| Courier delivery to door | 01.09.2026 | 4.99 EUR |

## Summary description

The BlueOptics EB4J DAC SFP28 cable offers high-speed data transmission with a length of 0.5 meters. It is compatible with SFP28 interfaces, ensuring reliable connectivity for data centers and networking applications. The cable is designed for durability and performance, featuring a robust construction that minimizes signal loss. Ideal for high-bandwidth applications, it supports data rates up to 25 Gbps, making it a perfect choice for modern networking needs.

## Long description

The BlueOptics EB4J DAC SFP28 SC272701Q0.5M30 EB4J-BL BlueLAN is a 0.5 meter direct attach copper (DAC) cable engineered for short-reach 25 Gbps links using SFP28 ports. It provides a pre-terminated, low-latency connection suitable for switching, server and storage interconnects in data center racks and top-of-rack configurations. The cable design focuses on stable signal transmission, mechanical robustness and straightforward installation in dense networking environments.
Advantages
This DAC SFP28 cable delivers high-bandwidth performance up to 25 Gbps with minimal signal loss due to its optimized copper conductors and shielding. Its short 0.5 m length reduces latency and cross-talk in rack deployments while simplifying cable management. The plug-and-play SFP28 form factor eliminates the need for separate transceivers, offering a cost-efficient and compact solution for high-density ports. Durable construction and secure connectors support repeated insertion cycles and maintain reliable contacts under typical data center conditions.
Suitable for
Server-to-switch connections in rack and blade environments
Top-of-rack switch interconnects
High-bandwidth storage networking and SAN links
Short-reach links in data centers and network closets
Key specifications
Interface type: SFP28 direct attach copper (DAC)
Length: 0.5 meter
Data rate support: up to 25 Gbps
Cable type: shielded copper with integrated connectors
Typical use: short-reach, low-latency interconnects
How to use
Install the cable by inserting each SFP28 connector into the corresponding SFP28 port on the network devices until the latch engages. Ensure ports are powered down or in maintenance mode as required by your equipment vendor before insertion or removal to avoid link flaps. After installation, verify the link status in device management interfaces and confirm negotiated speeds and lane configuration. For best results, route the cable within the rack or tray to avoid sharp bends and minimize mechanical strain on the connectors.
Usage recommendations
Use this 0.5 m DAC cable for short, high-speed connections where SFP28 ports are available and transceiver-based solutions are unnecessary. Maintain bend radius guidelines, avoid excessive pulling force, and store unused cables in a dust-free environment to preserve connector integrity and link reliability.

## FAQ

### How much does the Network Cable BlueOptics EB4J cost, and is it available for purchase?

The price is 66.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 394 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 27.08.2026 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 BlueOptics 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 BlueOptics 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