# Network Cable BlueOptics FN-CABLE-QSFP28-4SFP28-50CM QSFP28 DAC 50cm Blue

**URL:** https://aio.lv/en/product--blueoptics-fn-cable-qsfp28-4sfp28-50cm-bl--10967577
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** FN-CABLE-QSFP28-4SFP28-50CM-BL
**EAN:** 4063232331041
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-08-26 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-fn-cable-qsfp28-4sfp28-50cm-bl--10967577

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.08.2026 | free |
| Pickup points | 28.08.2026 | 1.79 EUR |
| Courier delivery to door | 28.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics FN-CABLE-QSFP28-4SFP28-50CM is a high-quality QSFP28 DAC cable designed for high-speed data transmission. With a length of 50cm, it offers reliable connectivity for data centers and networking applications. This cable supports 100G Ethernet and is compatible with various devices, ensuring optimal performance and minimal latency. Its durable construction and blue color make it a practical choice for organized cabling solutions.

## Long description

The BlueOptics FN-CABLE-QSFP28-4SFP28-50CM QSFP28 DAC 50cm Blue is a direct attach copper cable engineered for short-reach, high-bandwidth interconnects in data center and enterprise network environments. At 50 cm length it provides a low-latency physical connection supporting 100G Ethernet links between QSFP28 and four SFP28 ports or compatible breakout configurations. The cable’s durable jacket and molded connectors are designed for frequent handling and tidy rack installations where signal integrity and predictable performance are required.
Advantages
This QSFP28 DAC cable offers a compact, energy-efficient alternative to optical transceivers for short distances, reducing power consumption and heat compared with active optics. Its direct attach design simplifies installation with plug-and-play connectivity and eliminates the need for separate transceivers and fiber patch cords. The blue outer jacket aids cable identification and organized cable management in rack and patch panel setups.
Suitable for
Intra-rack or adjacent-rack 100G connections in data centers
Server-to-switch and switch-to-switch links using QSFP28 to SFP28 breakout
High-performance computing clusters and storage area networks
Test labs and equipment racks requiring short, reliable copper interconnects
Key specifications
Form factor: QSFP28 to 4× SFP28 direct attach copper (breakout DAC)
Supported data rate: 100 Gbit/s aggregate (compatible with 4×25G channels)
Length: 50 cm
Connector types: QSFP28 plug and SFP28 plugs
Cable jacket color: blue
Transmission medium: copper, passive direct attach
Typical use range: short-reach interconnects within rack or between adjacent racks
How to use
Ensure both endpoints support QSFP28 and SFP28 breakout configurations and that the switch or adapter firmware is compatible with passive DAC cables. Power down or follow hot-plug guidelines of your hardware when inserting or removing modules if recommended by the device manufacturer. Align the QSFP28 connector with the port, insert until it seats securely, then connect the SFP28 plugs to the corresponding ports. Route the cable to avoid sharp bends and excessive strain; maintain bend radius guidelines specified by your equipment vendor.
Usage recommendations
For reliable operation, use this cable for short-distance links within racks or between immediately adjacent racks. Verify compatibility with your switch and server vendors’ supported cable lists and ensure firmware is up to date. Avoid exceeding recommended bend radius, minimize mechanical stress on connectors, and maintain a clean environment to preserve contact quality.

## FAQ

### How much does the Network Cable BlueOptics FN-CABLE-QSFP28-4SFP28-50CM cost, and is it available for purchase?

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 25.08.2026 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