# Passive SFP28 DAC copper cable CBO 0.5 m for 25GbE connections

**URL:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-gm-bl--4471166
**Data updated:** 2026-02-25 16:35 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** SFP28-DAC-0.5M-GM-BL
**EAN:** 4063232098128
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 48.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfp28-dac-05m-gm-bl--4471166

## 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

Passive SFP28 DAC copper cable by CBO, 0.5 m length, designed for 25GbE-compatible ports. This direct-attach cable provides a short-range, low-latency connection between SFP28 ports on switches, servers or NICs without transceivers. Ideal for rack-to-rack or chassis interconnects where a fixed, cost-effective, and energy-efficient 0.5 m link is required.

## Long description

Passive SFP28 DAC copper cable CBO 0.5 m for 25GbE connections is a factory-terminated direct-attach cable designed to provide a short-range, low-latency electrical link between SFP28 ports. Manufactured by BlueOptics, this 0.5 metre assembly connects 25GbE-compatible switches, servers and network interface cards without the need for separate transceiver modules, offering a compact and energy-efficient solution for high-density rack environments.
Advantages
The direct-attach nature of this passive SFP28 cable eliminates the cost and power consumption associated with active optics or separate transceivers while delivering deterministic latency and stable signal integrity over short distances. Its fixed 0.5 m length reduces cable clutter in dense racks and simplifies cable management. The cable is suited for plug-and-play installation and is compatible with standard SFP28 port form factors, enabling immediate connectivity between compatible devices.
Suitable for
 Rack-to-rack connections in data centers
 Interconnects between switches and top-of-rack devices
 Server-to-switch links for 25GbE NICs
 Short-reach links inside network chassis or appliances
Key specifications
 Interface: SFP28 to SFP28 electrical direct-attach cable
 Rated data rate: 25 Gbps per lane (25GbE link)
 Length: 0.5 metre
 Cable type: Passive copper twinax assembly
 Latency: low, suitable for short-range high-performance links
 Form factor compatibility: SFP28 port form factor on switches, servers and NICs
How to use
Insert each SFP28 connector end into the corresponding SFP28 port on the devices to be linked until the latch engages. Ensure both ports are designed for 25GbE operation and are powered down or follow hot-swap guidance from the equipment manufacturer if available. After insertion, verify link status through the device management interface or LED indicators and confirm negotiated link speed and duplex settings. For removal, press the release mechanism and pull the connector straight out to avoid damaging the port.
Usage recommendations
Use this passive DAC for short-distance fixed connections up to 0.5 m inside racks or between adjacent racks. Avoid excessive bending near the connector ends and maintain clearance to prevent strain on the cable. Verify firmware or vendor compatibility if devices enforce vendor-specific transceiver validation.

## FAQ

### How much does the CBO SFP28 DAC passive copper cable 0.5 m cost, and is it available for purchase?

The price is 58.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 400 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/4471166/59859436_large.webp