# BlueOptics XQ+BC0003-XS+-BL InfiniBand/fibre optic cable 3 m QSFP28 4xSFP28 Male/Male

**URL:** https://aio.lv/en/product--blueoptics-xqbc0003-xs-bl--8420810
**Data updated:** 2026-03-07 15:17 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** XQ+BC0003-XS+-BL
**EAN:** 4063232290058
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-xqbc0003-xs-bl--8420810

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics XQ+BC0003-XS+-BL is a 3 m InfiniBand/fibre optic cable featuring a QSFP28 connector and 4xSFP28 connectors. Designed for high-speed data transmission, it ensures reliable connectivity in data centers and networking environments. The male-to-male configuration makes it versatile for various applications, providing excellent performance and durability.

## Long description

The BlueOptics XQ+BC0003-XS+-BL is a 3 m high-speed Direct Attach Cable (DAC) with a QSFP28 connector on one end and four SFP28 connectors on the other. Designed for short-range, high-bandwidth links in racks and between adjacent racks, this passive twinax copper cable supports 100GBase-CR4 / 4x25GBASE-CR electrical transmission and InfiniBand/fibre optic compatible architectures where DAC copper is accepted. The 26 AWG construction and MSA-compliant design make it suitable for modern switches, routers and storage systems that support QSFP28 to 4xSFP28 connections.
Advantages
The cable provides low latency and low power consumption typical for passive twinax DACs, while its MSA-compliant connectors ensure compatibility with a wide range of hardware platforms. Built from quality components and tested for compatibility, the cable offers reliable signal transfer for up to 100 Gbit/s over the specified 3 m distance. Its simple passive design reduces points of failure and supports cost-effective, energy-efficient installations in data centres and network racks.
Suitable for
Short-range 100 Gbps links between switches and routers within racks or adjacent racks
Connecting QSFP28 ports to four 25 G SFP28 ports for server-to-switch or switch-to-switch links
High-speed Ethernet, FCoE and InfiniBand environments that accept passive DAC copper solutions
Data centre and lab environments requiring low-latency, low-power interconnects
Key specifications
Length: 3 metres
Connector type: QSFP28 (male) to 4 x SFP28 (male)
Cable type: Passive twinax copper (DAC), 26 AWG
Supported data rates: up to 100 Gbit/s (4x25G lanes)
Standards: 100GBase-CR4 / 4x25GBASE-CR electrical transmission; MSA-compliant
Typical power consumption: passive design with very low power draw
How to use
Install the BlueOptics QSFP28 to 4xSFP28 DAC by inserting the QSFP28 plug into the QSFP28 port and the SFP28 plugs into the corresponding SFP28 ports on your devices. Ensure both devices officially support passive DAC connections and the 100GBase-CR4 / 4x25GBASE-CR transmission mode. Handle connectors by their housings and avoid excessive bending of the cable; maintain the minimum bend radius recommended by the device or rack manufacturer. Verify link status on connected hardware after insertion and monitor traffic and error counters to confirm proper operation.
Usage recommendations
Use this passive DAC for short, direct electrical interconnects inside racks or between adjacent racks. Confirm device compatibility with QSFP28-to-4xSFP28 passive twinax cables before deployment and perform an initial link test. For runs longer than 3 metres or where optical isolation is required, consider active DACs or fibre optic assemblies.

## 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 XQ+BC0003-XS+-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 — 19 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 27.07.2026 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/8420810/59506880_large.webp