# InfiniBand/fibre optic cable BlueOptics SFPPQSFP28-05-BL 5 m QSFP 4xSFP+

**URL:** https://aio.lv/en/product--blueoptics-sfppqsfp28-05-bl--8373413
**Data updated:** 2026-03-07 15:17 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** SFPPQSFP28-05-BL
**EAN:** 4063232288642
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-sfppqsfp28-05-bl--8373413

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

The BlueOptics SFPPQSFP28-05-BL is a 5 m InfiniBand/fibre optic cable featuring a QSFP connector and 4xSFP+ connectors. It provides reliable high-speed data transmission for data centers and networking applications. The male/male configuration ensures easy connectivity between devices, making it ideal for high-performance computing environments.

## Long description

The BlueOptics SFPPQSFP28-05-BL is a 5 m InfiniBand / fibre optic direct attach cable with a QSFP connector on one end and four SFP+ connectors on the other. Designed for short-reach high-speed links in racks and between adjacent racks, this passive twinax-style assembly supports multi-lane connections and is intended for use where a compact, low-latency copper or compatible solution is required. The male-to-male configuration enables straightforward connectivity between switches, routers, storage systems and other hardware that accept QSFP to 4xSFP+ direct attach connections.
Advantages
The cable supports aggregated link speeds up to 40 Gbit/s over the 5 m length using a QSFP to 4xSFP+ topology suitable for InfiniBand, Ethernet and related protocols where the host hardware supports passive direct attach solutions. Its 26 AWG conductor size and MSA-compliant form factor provide predictable electrical characteristics for short-distance interconnects. Passive construction means no external power is required in the cable itself, resulting in low power consumption and reduced points of failure. Compatibility testing and use of quality components contribute to stable performance and a long service life.
Suitable for
 Short-reach interconnects in data center racks and between adjacent racks
 40GBase-CR4 and 4x10GBASE-CR applications where QSFP to 4xSFP+ connectivity is required
 High-performance computing and InfiniBand networking links
 Connections between switches, routers, and storage systems supporting passive DAC assemblies
Key specifications
 Cable length: 5 metres
 Connector A: QSFP (male)
 Connector B: 4 × SFP+ (male)
 Maximum aggregated data rate: up to 40 Gbit/s over the 5 m link (4×10G lanes)
 Cable type: passive direct attach twinax-style copper assembly
 Conductor gauge: 26 AWG
 Form factor: MSA-compliant QSFP to 4×SFP+ breakout
How to use
Install the QSFP end into the QSFP port of the host device and insert the four SFP+ ends into the corresponding SFP+ ports of the receiving equipment, or vice versa depending on system design. Ensure both devices officially support passive QSFP-to-4xSFP+ direct attach connections and the intended protocol (for example 40GBase-CR4 or 4×10GBASE-CR). Route the cable to avoid sharp bends and mechanical stress, keeping the length within the specified 5 m range for reliable signal integrity. No additional power or transceiver modules are required in the cable itself; link configuration may require host-side settings or firmware that recognizes passive DAC connections.
Usage recommendations
Verify compatibility with the specific switch, router or storage model before installation and test the link after connecting. For best results, use the cable for short rack-to-rack or within-rack connections up to 5 m, avoid tight bends near the connectors, and confirm the network ports are configured for the intended aggregated link speed and protocol.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.25 kg |
| Package weight | 260 g |
| Operating temperature (T-T) | 0 - 70 |
| Cable length | 5 m |
| Data transfer rate | 40 Gbit/s |
| Product colour | Orange |
| Connector 1 | QSFP |
| Connector 2 | 4xSFP+ |
| AWG wire size | 26 |
| Sustainability compliance | Yes |
| Warranty period | 5 year(s) |
| Compliance certificates | Federal Communications Commission (FCC), RoHS |
| InfiniBand protocol | Yes |

## FAQ

### How much does the InfiniBand/fibre optic cable BlueOptics SFPPQSFP28-05-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 — 11 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 28.07.2026 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/8373413/64376401_large.webp