# InfiniBand/fibre optic cable BlueOptics QSFP28-4SFP28-CABLE\_3-BL 3 m 4xSFP28

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-4sfp28-cable3-bl--10672775
**Data updated:** 2026-02-25 16:39 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-4SFP28-Cable\_3-BL
**EAN:** 4063232316338
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-4sfp28-cable3-bl--10672775

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.89 EUR |
| Courier delivery to door | 05.08.2026 | 4.99 EUR |

## Summary description

The BlueOptics QSFP28-4SFP28-CABLE\_3-BL is a 3-meter InfiniBand/fibre optic cable featuring a QSFP28 connector on one end and four SFP28 connectors on the other. This male-to-male cable is designed for high-speed data transmission, making it ideal for data centers and high-performance computing environments.

## Long description

The BlueOptics QSFP28-4SFP28-CABLE\_3-BL is a 3-meter InfiniBand/fibre optic direct attach cable with a QSFP28 plug on one end and four SFP28 plugs on the other. This male-to-male cable is intended for short-range high-speed connections in racks and between adjacent racks. It supports electrical 100GBase-CR4 and 4x25GBASE-CR applications over a 3 m distance and is suitable for use in hardware platforms that accept QSFP28 to 4xSFP28 direct attach connections.
Advantages
The cable provides a consolidated 100 Gbps link split into four 25 Gbps channels, enabling flexible port aggregation and port breakout configurations. As a passive twinax direct attach solution with 26 AWG conductors, it offers low power consumption, low latency and a simple mechanical design that reduces failure points. The product is manufactured to industry MSA-compliant dimensions and uses high-quality components to support extended operational lifetimes in data centre environments.
Suitable for
Short-range interconnects within racks and between adjacent racks
Linking switches, routers and storage systems that support QSFP28 to 4xSFP28 DACs
100G Ethernet, FCoE, Fibre Channel and InfiniBand links up to 3 m
Port breakout scenarios where one QSFP28 port is split into four SFP28 ports
Key specifications
Cable length: 3 meters
Connector type: QSFP28 (one end) to 4 × SFP28 (other end)
Transmission: electrical twinax direct attach (passive DAC)
Data rate: supports up to 100 Gbps (4 × 25 Gbps lanes)
Conductor gauge: 26 AWG
MSA-compliant mechanical and electrical design
Typical use: short-distance, high-speed rack interconnects
How to use
Install the QSFP28 plug into a compatible QSFP28 port and plug the four SFP28 connectors into the corresponding SFP28 ports on the target equipment. Ensure that the host devices support passive DAC QSFP28-to-4xSFP28 breakout functionality and that port configuration (speed and lane mapping) is set appropriately in the switch or router firmware. Handle connectors carefully, avoid sharp bends and maintain the specified bend radius to prevent signal degradation.
Usage recommendations
Use this cable for short, fixed connections inside racks or between directly adjacent racks where electrical DAC is supported. Verify device compatibility and software support for passive QSFP28 breakout before deployment. For longer distances or optical transceiver requirements, choose appropriate active or fibre-optic solutions instead.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Operating temperature (T-T) | 0 - 70 |
| Cable length | 3 m |
| Data transfer rate | 100 Gbit/s |
| Product colour | Black, Silver |
| Connector 1 | QSFP28 |
| Connector 2 | 4xSFP28 |
| AWG wire size | 26 |
| Warranty period | 5 year(s) |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics QSFP28-4SFP28-CABLE\_3-BL cost, and is it available for purchase?

The price is 192.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 31.07.2026 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/10672775/59909103_large.webp