# Network Cable BlueOptics FN-CABLE-QSFP28-4SFP28-5 QSFP28 DAC 5m Black

**URL:** https://aio.lv/en/product--blueoptics-fn-cable-qsfp28-4sfp28-5-bl--10967342
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Network Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** FN-CABLE-QSFP28-4SFP28-5-BL
**EAN:** 4063232330723
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 290.49 €
**Prices and availability valid until:** 2026-08-16 23:59
**Price without VAT (21%):** 240.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-fn-cable-qsfp28-4sfp28-5-bl--10967342

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.08.2026 | free |
| Pickup points | 19.08.2026 | 1.79 EUR |
| Courier delivery to door | 19.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics FN-CABLE-QSFP28-4SFP28-5 is a high-quality QSFP28 DAC cable designed for data centers and high-speed networking. With a length of 5 meters, it provides reliable connectivity for 100G Ethernet applications. The cable features a durable construction, ensuring longevity and performance in demanding environments. Its black color and compact design make it suitable for various setups, while the QSFP28 connectors ensure compatibility with a wide range of devices.

## Long description

The BlueOptics FN-CABLE-QSFP28-4SFP28-5 is a 5-metre direct attach copper (DAC) cable with QSFP28 to 4×SFP28 connectivity, engineered for short-reach 100G Ethernet links in data centre and enterprise network environments. The cable offers a fixed-length, low-latency connection that does not require transceivers, providing a compact and cost-efficient option for switch-to-switch, switch-to-server or server-to-server interconnects. Its black outer jacket and robust construction are intended for rack-mounted and patch-panel deployments where space and signal integrity are important.
Advantages
The cable provides reliable 100G connectivity with minimal signal loss and reduced power consumption compared with optical transceivers. Its direct-attach design eliminates the need for separate optical modules, simplifying installation and lowering equipment costs. The assembled connectors and reinforced jacket improve durability under frequent handling and within dense cabling runs, while the fixed 5 m length helps maintain predictable link characteristics and cable management in rack environments.
Suitable for
100G Ethernet short-reach links in data centres
High-density rack patching between QSFP28 and multiple SFP28 ports
Server-to-switch or switch-to-switch interconnects within the same rack or adjacent racks
Environments where low latency and low power are required
Key specifications
Cable type: QSFP28 to 4×SFP28 direct attach copper (DAC)
Length: 5 metres
Supported data rate: up to 100 Gbps
Connector type: QSFP28 plug to four SFP28 plugs
Jacket colour: black
Design: fixed-length, factory-assembled twinax copper assembly
How to use
Install the cable by inserting the QSFP28 end into the QSFP28 port and the SFP28 ends into the corresponding SFP28 ports on your devices, ensuring each connector is fully seated and the latches engage. Verify that connected devices are powered and that port configurations support direct attach copper links and the intended 100G or breakout mode. Route the cable to avoid sharp bends, excessive tension and sources of electromagnetic interference. For reliable operation, confirm link status via device management interfaces after installation.
Usage recommendations
Use this DAC cable for short-reach, high-bandwidth connections within racks or between adjacent racks. Avoid kinking the cable or exceeding recommended bend radius; store and handle the assembly to prevent mechanical damage to the plugs and jacket. Confirm compatibility with host devices’ DAC support and breakout port modes before deployment.

## FAQ

### How much does the Network Cable BlueOptics FN-CABLE-QSFP28-4SFP28-5 cost, and is it available for purchase?

The price is 290.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 14.08.2026 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