# SFP28 Direct-Attach Copper Cable CBO 7Z57A03542-BO 5 m Male-to-Male 25 Gbit/s

**URL:** https://aio.lv/en/product--blueoptics-7z57a03542-bo--4469926
**Data updated:** 2026-02-25 16:34 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** 7Z57A03542-BO
**EAN:** 4063232143262
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 145.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 120.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-7z57a03542-bo--4469926

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

This SFP28 direct-attach copper (DAC) cable by CBO, model 7Z57A03542-BO, is a 5-meter male-to-male assembly supporting 25 Gbit/s data rates. Designed for short-reach high-speed connections, it links SFP28 ports in switches, servers and NICs with low latency and reduced power compared to optics. Suitable for datacenter top-of-rack and server-to-switch links, providing reliable, cost-effective 25GbE connectivity.

## Long description

This SFP28 Direct-Attach Copper (DAC) cable from BlueOptics is a 5 m male-to-male assembly designed for short-reach 25 Gbit/s connections. It connects SFP28 ports in switches, servers and network interface cards (NICs) to provide a stable 25GbE link with low latency and reduced power consumption compared with optical transceivers. The cable is intended for datacenter environments where cost-effective, reliable high-speed interconnects are required for top-of-rack and server-to-switch cabling.
Advantages
The copper DAC design delivers native 25 Gbit/s performance with minimal signal conversion, resulting in lower latency and lower power draw than equivalent optical solutions. As a fixed, passive assembly it simplifies deployment and reduces ongoing maintenance needs. Its 5 m length is suited to rack-level and short inter-rack connections while offering reliable electrical characteristics for consistent throughput.
Suitable for
 Top-of-rack switch to server connections in datacenters
 Server-to-switch links within a single rack or adjacent racks
 High-performance computing clusters requiring short, low-latency links
 Network upgrades to 25GbE where cost and power efficiency are priorities
Key specifications
 Interface type: SFP28 male to SFP28 male
 Maximum data rate: 25 Gbit/s
 Cable type: Direct-attach copper (DAC)
 Length: 5 metres
 Typical use: short-reach, rack-level interconnects
 Latency: low, passive electrical connection
 Power consumption: lower than equivalent optical transceivers
How to use
Install the cable by inserting each SFP28 connector into the corresponding SFP28 port on your switch, server or NIC until the latch engages. Verify link status in the device management interface and ensure both endpoints are configured for 25GbE operation. For best results, route the cable to avoid sharp bends and maintain proper airflow within the rack. If the cable is passive, confirm that connected equipment supports passive DACs at the required data rate.
Usage recommendations
Use this 5 m SFP28 DAC for rack-level connections where short distance, low latency and reduced power usage are important. Avoid exposing the cable to excessive mechanical stress or electromagnetic interference. Verify compatibility with your network hardware vendor documentation before deployment.

## FAQ

### How much does the SFP28 Cable CBO 7Z57A03542-BO 5m 25 Gbit/s cost, and is it available for purchase?

The price is 145.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 03.08.2026 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

## Image

https://aio.lv/img/cache/product/4469926/59859178_large.webp